IT Exam Questions and Solutions Library
An engineer must speed up the reauthentication delays that are being experienced on the wireless infrastructure by deploying a key-caching mechanism. Which mechanism must be configured? A. PEAP B. FT C. PMF D. GTK-randomization  Suggested Answer: B
A wireless deployment in a high-density environment is being used by vendors to process credit card payment transactions via handheld mobile scanners. The scanners are having problems roaming between access points in the environment. Which feature on the wireless controller should have been incorporated in the design? A. RX-SOP B. 802.11w C. AP Heartbeat Timeout D. Application Visibility Control  Suggested Answer: A
A university is in the process of designing a wireless network in an auditorium that seats 500 students and supports student laptops. Which design methodology should the university implement in the auditorium? A. roaming design model B. voice design model C. location design model D. high-density design model  Suggested Answer: B
A network engineer is working on a design for a wireless network that must support data, voice, and location services. To support these services, which access point placement must the engineer use? A. corner only B. perimeter and corner C. perimeter only D. indoor and outdoor  Suggested Answer: C
A wireless network consultant must assess an existing wireless LAN controller. Which section must the consultant check before replacing the old APs with APs that are IEEE 802.11ac-capable? A. number of AP licenses B. controller PSU C. throughput capacity D. software version  Suggested Answer: A
A wireless engineer is getting ready to perform a predictive site survey. The new network needs to support data and voice over wireless. Which two Cisco recommendations should be considered for the design? (Choose two.) A. Set -19 dBm of separation between APs on the same channel. B. Use the 5 GHz radio band due to 40 MHz bandwidth capability. C. Use the 5 GHz radio band due to the 24 non-overlapping channels. D. Set the cell boundary to -67 dBm. E. Set the cell overlap to 15% Â Suggested Answer: CD
A network administrator of a global organization is collapsing all controllers to a single cluster located in central Europe. Which concern must be addressed? A. Some channels may not be available consistently across the organization. B. Different RF policies per office are not available in this configuration. C. Syslog must be configured to the time-zone of the NMS platform. D. Centralized controllers cannot uniformly authenticate global users. Â Suggested Answer: C
An engineer is using a Cisco AIR-2702i AP to conduct a Layer 1 site survey. Which mode is selected for the AP to discover non-Wi-Fi interference with Metageek Chanalyzer? A. Sniffer B. Monitor C. FlexConnect D. SE-Connect  Suggested Answer: D
A customer has restricted the AP and antenna combinations for a design to be limited to one model integrated antenna AP for carpeted spaces and one morel external antenna AP, with high gain antennas for industrial, maintenance, or storage areas. When moving between a carpeted area to an industrial area, the engineer forgets to change survey devices and surveys several APs. Which strategy will reduce the negative impact of the design? A. Deploy unsurveyed access points to the design. B. Increase the Tx power on incorrectly surveyed access points. C. Deploy the specified access points per area type. D. Resurvey and adjust the design. Â Suggested Answer: D
Refer to the exhibit. During a post Mesh deployment survey, an engineer notices that frame collisions occur when MAP-1 and MAP-3 talk to RAP-2. Which type of issue does the engineer need to address in the design? A. co-channel interference B. hidden node C. backhaul latency D. exposed node  Suggested Answer: B
A network engineer is preparing for an office site survey with a height of 2.5 meters. Which three components are recommended to complete the survey? (Choose three.) A. Use a battery pack to power APs. B. Use a drawing of the office space to draw AP and client placements. C. Use DoS attack on APs while measuring the throughput. D. Use APs with directional antennas. E. Use APs with external antennas. F. Use APs with built-in antennas. Â Suggested Answer: ABF
An engineer is designing a wireless network that will support many different types of wireless clients. When conducting the survey, which client must be used to ensure a consistent experience for all of the wireless clients? A. the client that has the highest RF properties B. the client that is used most by the company C. the client that is used least by the company D. the client with the worst RF characteristics  Suggested Answer: B
A technician connects a Cisco Aironet 3700 Series AP to a switch and realizes that the AP is coming up with 3x3 MIMO. What explains this behavior? A. A redundant power supply is unavailable on the switch. B. The switch is 802.3af capable. C. The AP is getting power from a power injector. D. The switch is PoE+ capable. Â Suggested Answer: D
A rapidly expanding company has tasked their network engineer with wirelessly connecting a new cubicle area with Cisco workgroup bridges until the wired network is complete. Each of 42 new users has a computer and VoIP phone. How many APs for workgroup bridging must be ordered to keep cost at a minimum while connecting all devices? A. 4 B. 5 C. 6 D. 7 Â Suggested Answer: A
An engineer is conducting a Layer 2 site survey. Which type of client must the engineer match to the survey? A. best client available B. phone client C. normal client D. worst client available  Suggested Answer: C
A medium-sized hospitality company with 50 hotels needs to upgrade the existing WLAN in each hotel to 802.11n. During the site surveys for each hotel, what needs to be taken into consideration when determining the locations for each AP? A. Selecting APs that can be hidden in ceiling panels to provide a secure and clean aesthetic look. B. Selecting locations that make visual assessment of the AP operation easy. C. Selecting locations that are easily accessed so maintenance and upgrades can be performed quickly. D. Selecting AP locations where power is already available. Â Suggested Answer: D
A wireless engineer must optimize RF performance for multiple buildings with multiple types of construction and user density. Which two actions must be taken? (Choose two.) A. Configure FlexConnect groups for each building. B. Configure WMM profiles for each building. C. Configure AP groups for each area type. D. Configure RF profiles for each area type. E. Enable DTPC on the network. Â Suggested Answer: CD
A network engineer needs to create a wireless design to bridge wired IP surveillance cameras in the parking lot through a mesh AP. To which operate mode of the AP should the cameras connect? A. RAP B. MAP C. FlexConnect D. local  Suggested Answer: B
A company has 10 access point licenses available on their backup Cisco WLC, and their primary Cisco WLC is at full capacity. 5 access points are set to high failover priority and 7 access points are set to critical failover priority. During a failure, not all critical access points failed over to the backup Cisco WLC. Which configuration is the cause of this issue? A. The high priority access point is oversubscribed. B. network ap-priority is set to enable. C. The critical priority access point count is oversubscribed. D. network ap-priority is set to disable. Â Suggested Answer: A
An engineer must create data-link redundancy for the company's Cisco Wireless LAN Controller. The engineer has decided to configure LAG-based redundancy instead of port-based redundancy. Which three features of LAG-based redundancy influenced this decision? (Choose three.) A. Packets are always sent out on the same port they are received on. B. All interface traffic passes as long as one port is up. C. The same port has multiple untagged dynamics interfaces. D. Interface connection to two separate nonstacked switches is available. E. Full bandwidth of all links is available. F. Ports are grouped into multiple LAGs. Â Suggested Answer: ABF
A customer is running a guest WLAN with a foreign/export-anchor setup. There is one anchor WLC in the US and two in Europe. Anchor WLC priorities are used to prefer local anchors. During a routine network audit, it is discovered that a large number of guest client sessions in the US are anchored to the WLCs in Europe. Which reason explains this behavior? A. The foreign WLC failed and recovered. B. The US anchor WLC failed and recovered. C. The US anchor WLC is anchored to itself with a priority value of zero. D. The anchor WLC is in the same mobility group. Â Suggested Answer: B
A customer has two Cisco 5508 WLCs that manage all the access points in their network and provide N+1 redundancy and load balancing. The primary Cisco WLC has 60 licenses and the secondary Cisco WLC has 40. The customer wants to convert the N+1 model to an HA model and provide SSO. Configuration must be performed during a maintenance window. After performing all the configurations on both controllers, the config redundancy unit secondary command is issued on the secondary Cisco WLC and it fails. Which parameter needs to be in place to complete the configuration? A. A cable in the RP port B. The secondary Cisco WLC needs a minimum of 50 base licenses C. The primary Cisco WLC is already set as the secondary unit D. SSO needs to be enabled  Suggested Answer: B
An engineer has successfully configured high availability and SSO using two Cisco 5508 Wireless LAN Controllers. The engineer can access the Active Primary WLC, but the Secondary Standby WLC is not accessible. Which two methods allow access to the standby unit? (Choose two.) A. via the console connection B. SSH to the redundancy management interface of the primary WLC C. SSH to the service port interface D. SSH to the virtual interface of the secondary WLC E. SSH to the management interface of the primary WLC Â Suggested Answer: AC
An engineer is configuring a centralized set of controllers for separate facilities. Which two Cisco wireless architectures must be used to ensure flexible sizing of WLAN to VLAN mappings? (Choose two.) A. interface group B. mobility group C. AP group D. controller group E. RF group  Suggested Answer: BC
An engineer must repurpose a lab WLC appliance for use in the production environment of the enterprise. After the new WLC is configured with the information of the other WLC, the mobility tunnels are still not coming up. What is the reason? A. A firewall is blocking UDP port 16667 between the WLCs. B. The WLC management interfaces are in the same VLAN. C. The hardware platform is incompatible. D. The mobility groups are different. Â Suggested Answer: D
Campus users report a poor wireless experience. An engineer investigating the issue notices that in high-density areas, the wireless clients fail to switch the AP to which are automatically connected. This sticky client behavior is causing roaming issues. Which feature must the engineer configure? A. optimized roaming B. load balancing and band select C. Layer 3 roaming D. Layer 2 roaming  Suggested Answer: A
What is the 9800 Series Wireless Controller mobility tunnel on a Cisco Catalyst 9800 controller? A. It is an IPsec tunnel with control path only. B. It is a CAPWAP tunnel with data path only. C. It is a CAPWAP tunnel with control path and data path. D. It is an IPsec tunnel with control path and data path. Â Suggested Answer: B
An engineer must ensure that the wireless network accomplishes fast, secure roaming by way of caching keys on the APs. Which key caching mechanism is enabled by default on a Cisco AireOS WLC? A. SKC B. OKC C. 802.11r D. CCKM Â Suggested Answer: D
An engineer is designing a wireless deployment for a university auditorium. Which two features can be used to help deal with the issues introduced by high AP count? (Choose two.) A. TSPEC B. RXSOP C. TPC D. LSS E. DFS Â Suggested Answer: CE
During a wireless network design, a customer requires wireless coverage on the perimeter of a building but also wants to minimize signal leakage from the wireless network. Which antenna should be used to accomplish this design? A. omnidirectional B. patch C. monopole D. dipole  Suggested Answer: C
WLC SSO is set up between two WLCs in a service provider network serving public spaces. On WLC failover, it is noticed that only about half of the original client count is now showing on the secondary WLC, although it is currently showing the role as active. Which design side case explains the issue? A. The secondary WLC platform does not support the required client count. B. The WLCs had not completed database sync before the primary failure. C. SSO is not configured correctly. D. Some client sessions were in WebAuth-Req state before failover. Â Suggested Answer: D
An engineer at a global enterprise organization must ensure that a mesh deployment has the highest number of channels available to the backhaul, regardless of region deployed. Which design meets this requirement? A. redundant controllers in the least restrictive regulatory domain B. redundant controllers in the most restrictive regulatory domain C. one controller per continent D. one controller per country code  Suggested Answer: B
Two Cisco 5520 Wireless LAN Controllers are managing all APs throughout the network. The WLCs are in different locations to provide geographical redundancy. A mobility group has been configured on both WLCs and has an UP status on both controllers. The APs in location A are statically configured to use controller A as the primary and controller B as the secondary. If the WLC in location A goes offline, the APs successfully join the WLC in location B, but they do not fail over to the primary configured controller. Which configuration task fixes this issue? A. Enable AP fallback globally on the WLC. B. Change the AP Failover Priority to critical. C. Use DHCP Option 43 and specify WLC in location A as primary. D. Configure the WLC in location A as primary using the CAPWAP AP Controller IP Address command on all the location A APs. Â Suggested Answer: A
A customer is looking for a network design with Cisco Hyperlocation using AP4800 for location tracking via a custom mobile app. Issues appeared in the past with refresh rates for location updates. What needs to be implemented to meet these requirements? A. Cisco CMX SDK in the location app B. device Bluetooth via the app C. Cisco FastLocate technology D. redundant CMX and fetch location in round-robin fashion  Suggested Answer: C
A network engineer is troubleshooting connectivity issues between two WLCs running 8.x code in SSO mode and finds that the redundancy management heartbeat is failing. Which packet type must be filtered for heartbeats when taking a capture to verify communication? A. RSTP B. UDP C. TCP D. ICMP Â Suggested Answer: B
A wireless engineer is designing a wireless network to support real time applications over wireless. Which IEEE protocol must the engineer enable on the WLC so that the number of packets that are exchanged between an access point and client are reduced and fast roaming occurs? A. 802.11w B. 802.11r C. 802.11i D. 802.11k  Suggested Answer: D
A Cisco controller-based wireless network must support workgroup bridges. The APs configured as workgroup bridges must support wired and wireless clients. The wireless clients must connect to the spare radio. What is the maximum number of wired client connections supported on a workgroup bridge? A. 20 B. 25 C. 30 D. 35 Â Suggested Answer: A
An engineer must create a multicampus architecture wireless design to accommodate 4500 access points for wireless data and guest access. Which model controller fits the requirements to support all access points on one high availability controller setup? A. 3504 B. 5508 C. 5520 D. 8540 Â Suggested Answer: D
A customer has a centralized wireless deployment with N+1 high availability and few open authentication SSIDs configured. After failover, all APs are broadcasting all SSIDs, but the clients are assigned IP addresses from a different subnet. The WLANs on both WLCs are configured with the same dynamic interfaces. Which feature must be incorporated in the wireless design of the second controller? A. RF Profile B. AP Groups C. VLAN Select D. AAA Override  Suggested Answer: C
Refer to the exhibit. An engineer is about to establish a mobility peer connection between a Cisco Catalyst 9800-CL version 16.10.1 e and Cisco AireOS 5520 version 8.8.120.0. The data path between the 9800-CL and AireOS 5520 is up, but its control path is down. Based on the configuration, what is the root of the issue? A. The data-link-encryption configuration is missing from the 9800-CL configuration. B. CAPS is used to key in the MAC address in the IOS_XE configuration, which causes the control path to be down. C. Encrypted mobility is being used in the 5520 configuration, which causes the control path to be down. D. The certificate hash key is missing from the AireOS 5520 WLC mobility configuration, which causes the control path to be down. Â Suggested Answer: D
An engineer designed a new wireless network for an enterprise customer. The customer is concerned that some wireless features may not be available because the bill of materials has only Base and no WPlus licenses for the Cisco WLC version 8. What is the reason for the engineer to take this approach regarding the licenses? A. OfficeExtend AP needs a WPlus license. B. CAPWAP Data Encryption licenses are required for this feature. C. All WLC features are available because WPLUS license is now included in the Base license. D. To have all the features, Plus licenses must be installed on the WLC. Â Suggested Answer: D
An engineer must design and configure a wireless network for: • pervasive coverage in an oil terminal • casual web and email traffic • 5 GHz What is the best design? A. Keep the power assignment as auto and disable 802.11n and 802.11ac MCS rate. B. Disable all data rates below 24 Mbps and keep the power assignment on the AP as auto. C. Keep all the data rates enabled and set the AP power assignment mode to auto. D. Disable all data rates below 54 Mbps and assign static power level 1 on all access points.  Suggested Answer: B
An engineer designs a new wireless network that uses a Cisco Catalyst 9800 Series wireless controller. The controller must be in a DMZ. The internal network is to be at the main on-premises data center of the customer. In addition, the customer wants to establish an EoIP tunnel to a Cisco 5520 WLC that is in a regional office. How must this requirement be incorporated into the design? A. Use Cisco IOS-XE code that supports encryption of the data plane on the Catalyst 9800 WLC. B. Use AirOS code that supports encryption of the control plane on the 5520 WLC. C. Use Cisco IOS-XE code that supports encryption of the control plane on the Catalyst 9800 WLC. D. Use AirOS code that supports encryption of the data plane on the 5520 WLC. Â Suggested Answer: C
A new wireless network design has these requirements: • AireOS WLCs as guest anchors • a Cisco Catalyst 9800 Series WLC as the foreign controller • use of Wi-Fi 6 APs • inter-controller roaming for guest users Which two design approaches meet these requirements? (Choose two.) A. Use EoIP for communication between controllers. B. Use WLC software versions that support IRCM. C. Use AVC on the anchor WLCs. D. Use IPv6 across the wireless network. E. Use secure mobility to pair controllers.  Suggested Answer: BE
A customer deploys a new Cisco high-density wireless network within the open areas of a mall to provide free public wireless on 5 GHz. The existing mall tenants have their own wireless networks that are independently managed. Which design approach minimizes channel utilization for the public network? A. Enable all 5-GHz channels that are supported by the region and use 40-MHz channels. B. Enable UNII-1 channels only and use 80-MHz channels. C. Enable UNII-1 channels only and use 20-MHz channels. D. Enable all 5-GHz channels that are supported by the region and use 20-MHz channels. Â Suggested Answer: C
A customer is concerned about mesh backhaul link security. Which level of encryption does the backhaul link use? A. hash B. AES C. WEP D. 3DES Â Suggested Answer: B
An engineer is performing an active survey of a network that must support different types of mobile devices. The devices must be able to run an application that requires a minimum RF of 73 dBm. Which mobile device must be used for the survey? A. one that has a receiver sensitivity of -70 dBm B. one that has the lowest receiver sensitivity C. one that has the most updated wireless card D. one that has 802.11a wireless support  Suggested Answer: A
When conducting a site survey for real-time traffic over wireless, which two design capabilities of smartphones and tablets must be considered? (Choose two.) A. no support for 802.11ac B. higher data rates than laptops C. fewer antennas than laptops D. no support for 802.11r E. lower data rates than laptops  Suggested Answer: BC
An engineer must assess an existing company WLAN to determine the possibility for future IEEE 802.11ac Wave 2 wireless deployment. The existing WLAN is IEEE 802.11a/n and has IEEE 802.11n and 802. 11a clients. The engineer must advise the customer about support for these older clients on the new APs. What happens with client compatibility? A. 802.11ac is backward compatible with 802.11n but not with 802.11a. B. 802.11ac is backward compatible with 802.11a but not with 802.11n. C. 802.11ac is backward compatible with 802.11a and 802.11n. D. 802.11ac is not backward compatible with 802.11a or 802.11n. Â Suggested Answer: C
An engineer has performed a predictive site survey for high-speed data and voice in an indoor office. What is the recommended data rate with גˆ’67 dBm signal level for optimal VoWLAN design? A. 6 Mbps on 802.11 bgn B. 24 Mbps on 802.11 bgn C. 12 Mbps on 802.11 an D. 24 Mbps on 802.11 an  Suggested Answer: B
Refer to the exhibit. A WLC SSO pair is set up. Which failure scenario causes a split-brain scenario? A. RP is down. B. Two distribution ports on the active WLC are down. C. VSL is down. D. One distribution port on the active WLC is down. Â Suggested Answer: C
An engineer needs a wireless design to provide redundancy for APs at remote sites that are connected to Cisco 3504 Wireless LAN Controllers. The central Cisco 5520 Wireless LAN Controller supports 2000 APs and has 1975 access points associated to it. The engineer decides that not all APs at the remote sites must remain functional in the event of a failure. How does the engineer ensure that the most important access points at the remote sites remain online while not impacting the main site? A. Enable Global AP Failover Priority, set the 1975 APs to a priority of "high", and set the 25 most important APs at the remote sites to "critical". B. Enable AP Fallback Mode, set the 1975 APs to a priority of "high", and set the 25 most important APs at the remote sites to "critical". C. Enable Global AP Failover Priority, leave the 1975 APs at the default priority, and set the most important APs at the remote sites to "low". D. Enable AP Fallback Mode, leave the 1975 APs at the default priority, and set the most important APs at the remote sites to "high". Â Suggested Answer: A
A customer has multiple WLCs running N+1 redundancy with APs equally distributed. Only one WLC is a designated backup for all other WLCs so the customer must ensure that the most critical APs remain registered or get priority over other APs in case of a WLC failure. However, the customer notices on WLC failure that some critical APs remain unregistered What needs to be addressed in the design? A. AP fallback is not enabled on the backup WLC. B. AP failover priority is not enabled globally on the backup WLC. C. AP failover priority is not enabled globally on the failed WLC. D. AP fallback is not enabled on the failed WLC. Â Suggested Answer: C
A customer uses a Cisco Catalyst 9800 Series wireless controller to manage all of the APs for a campus network. Secure guest access is required for the guest network. A Cisco 5520 anchor controller is deployed within a DMZ. Which design approach ensures that the mobility tunnel is established successfully between the wireless controller and the anchor controller? A. Run an Inter-Release Controller Mobility compatible software version on the wireless controller. B. Enable control plane encryption on the wireless controller. C. Disable data link encryption on the anchor controller. D. Run an Inter-Release Controller Mobility compatible software version on the anchor controller. Â Suggested Answer: A
A university lecture hall has a Cisco wireless high-density network with this configuration: • 5 GHz only • 20-MHz channels • UNII-1, UNII-2, and UNII2-E channels • TPC minimum = 8 • TPC maximum = 14 The lecture hall is 200 feet by 100 feet and has 16 Cisco APs that use directional antennas. Which feature must be included in the design to mitigate and reduce high-channel utilization from rogue APs? A. band select B. DFS detection C. RxSOP D. 802.11w  Suggested Answer: B
An engineer is working for an enterprise and deployed a Cisco 9800 Series Wireless Controller. The wireless infrastructure serves the employees and guest users across the company. The engineer must configure the controller to alleviate the sticky client issue in the deployment. Which action resolves the issue? A. Enable CHDM. B. Enable Optimize Roaming. C. Enable 802.11k. D. Enable data RSSI to -90db. Â Suggested Answer: B
What causes the most signal attenuation, based on the wireless design tools? A. cinder block wall B. metal door C. glass wall D. office window  Suggested Answer: B
During a post deployment site survey, issues are found with non-Wi-Fi interference. What should the engineer use to identify the source of the interference? A. wireless intrusion prevention B. Cisco Spectrum Expert C. Wireshark D. network analysis module  Suggested Answer: B
A wireless engineer is utilizing the voice readiness tool in Cisco Prime for a customer that wants to deploy Cisco IP phones. Which dBm range is the network inspected against? A. גˆ’78 to גˆ’65 dBm B. גˆ’72 to גˆ’67 dBm C. גˆ’85 to גˆ’65 dBm D. גˆ’85 to גˆ’67 dBm  Suggested Answer: D
Which non-Wi-Fi interferer can be identified by Metageek Chanalyzer? A. PDAs B. jammers C. smartphones D. printers  Suggested Answer: B
A wireless engineer is using Ekahau Site Survey to validate that an existing wireless network is operating as expected. Which type of survey should be used to identify the end-to-end network performance? A. GPS assisted B. spectrum analysis C. passive D. active ping  Suggested Answer: B
A wireless engineer is hired to design a network for a technology company. The company campus has four buildings and a warehouse with access points that provide full wireless coverage as well as a pair of WLCs located in the core of the network. Which type of wireless architecture is being used? A. unified deployment B. autonomous deployment C. centralized deployment D. distributed deployment  Suggested Answer: C
An engineer is performing a predictive wireless design for a medical treatment environment, which requires data and voice services. What is the minimum requirement for the design? A. overlapping גˆ’72 dBm coverage from two access points B. continuous גˆ’67 dBm coverage from one access point C. continuous גˆ’72 dBm coverage from one access point D. overlapping גˆ’67 dBm coverage from two access points  Suggested Answer: B
A high-density wireless network is designed. Which Cisco WLC configuration setting must be incorporated in the design to encourage clients to use the 5 GHz spectrum? A. Band Select B. RRM C. Cisco Centralized Key Management D. load balancing  Suggested Answer: A
Which two criteria must be considered when conducting an outdoor bridge site survey? (Choose two.) A. near-far effect B. weather C. traffic lights D. power lines E. Fresnel zone  Suggested Answer: AD
Where must the APs be mounted when used in a high-density wireless network to provide 6 dB to 20 dB of attenuation to a cell? A. in the aisle B. under the seat C. above the stage D. under the stage  Suggested Answer: B
Which three pieces of equipment are needed to conduct a fully measured wireless survey? (Choose three.) A. PoE battery B. spirit level C. access point D. tall tripod E. goggles F. ladder  Suggested Answer: ACD
An engineer must perform a pre deployment site survey for a new building in a high-security area. The design must provide a primary signal RSSI of -65 dBm for the clients. Which two requirements complete this design? (Choose two.) A. HVAC access B. WLC model C. site access D. number of clients E. AP model  Suggested Answer: DE
As part of a wireless site survey in a hospital, an engineer needs to identify potential Layer 1 interferers. In which two areas is the engineer most likely to find sources of 2.4 GHz and 5 GHz RF noise? (Choose two.) A. magnetic resonance imaging B. kitchen C. Gamma Knife radiation treatment D. X-ray radiography E. patient room  Suggested Answer: BE
An engineer is designing a high-density WLAN for a 10,000-seat auditorium. The solution must take advantage of human attenuation, as well as the aesthetics of the room. Where must the APs be placed? A. on the walls B. under the seats C. on the ceiling D. above the seating areas  Suggested Answer: C
An engineer is designing a new wireless network. The network needs to fulfill the following requirements: ✑ support multimedia applications ✑ support a high concentration of wireless clients ✑ support data over wireless ✑ support roaming Which approach should be used? A. use of micro cells with reduced power levels B. use of macro cells with reduced power levels C. coverage for cells at maximum power levels D. use of macro cells with maximum power levels  Suggested Answer: A
An engineer performs a Layer 1 survey by using Metageek Chanalyzer only on the current operating channel. Which operating mode is configured for a Cisco CleanAir AP? A. monitor B. local C. sniffer D. SE-connect  Suggested Answer: B
An engineer is designing a wireless network to support Cisco Hyperlocation. The customer indicated some locations that require high density. How is the design adjusted? A. Add additional APs to all the comers of the site. B. Add more APs than indicated from the site survey spread across all areas. C. Add an additional AP in the middle of the dense area. D. Run the site survey using -57dBm as a threshold. Â Suggested Answer: D
An engineer must decide the cell overlap for a wireless voice deployment. Which Cisco measurement recommendation should be considered? A. The edge of the cell should be גˆ’67 dBm. B. The edge of the cell should be below 35 RSSI. C. The measurement should be done on the 2.4-GHz band. D. One AP should be deployed per 3000 square feet.  Suggested Answer: A
An engineer changed the TPC Power Threshold for a wireless deployment from the default value to -65 dBm. The engineer conducts a new post deployment survey to validate the results. What is the expected outcome? A. decreased channel overlap B. increased cell size C. increased received sensitivity D. decreased client signal strength  Suggested Answer: B
A wireless engineer is performing a post verification of a wireless network. Which two metrics does the engineer verify to ensure that the wireless network can support voice services? (Choose two.) A. The coverage area must have a noise floor that does not exceed גˆ’87 dBm. B. The client device must have at least an גˆ’67 dBm RSSI. C. The rate of retransmitted packets must be 15 percent or below. D. The rate of retransmitted packets must be 20 percent or below. E. The client device must have at least an גˆ’65 dBm RSSI.  Suggested Answer: BC
A wireless engineer is designing a wireless network for a warehouse using access points with internal antennas. Which two elements have a negative effect on the wireless users? (Choose two.) A. wireless channels B. access point height C. client authentication D. client authorization E. absorption  Suggested Answer: BE
How are mobility groups created, excluding mobility anchors? A. Each WLC must use the same mobility domain name and be defined as a peer in each other's static mobility members list. B. If WLCs with HA SSO are deployed, each WLC in the WLC HA pair is considered separately as a mobility peer. C. The WLCs do not have to be of the same model or type to be a member of a mobility group; however, each member should be running different software versions. D. A mobility group does not require all WLCs in the group to use the same virtual IP address. Â Suggested Answer: B
Clustering Cisco WLCs into a single RF group enables the RRM algorithms to scale beyond the capabilities of a single Cisco WLC. How many WLCs and APs in an RF group can the controller software scale up to in WLC release 8.9 depending on the platform? A. up to 20 WLCs and 1000 APs B. up to 20 WLCs and 3000 APs C. up to 20 WLCs and 4000 APs D. up to 20 WLCs and 6000 APs  Suggested Answer: D
A network engineer is working on a predictive WLAN design. The new wireless network must support access to Internet, email, voice, and the inventory database. To successfully support these services, which configuration must the engineer use for the signal strength levels and SNR on the planning tool? A. signal strength of -67 dBm, 20-dB SNR, and maximum 5 percent packet loss B. signal strength of -70 dBm, 30-dB SNR, and maximum 10 percent packet loss C. signal strength of 67 dBm, 20-dB SNR, and maximum 1 percent packet loss D. signal strength of -67 dBm, 25-dB SNR, and maximum 1 percent packet loss  Suggested Answer: C
A customer has noticed that Client Band Select is enabled and no clients are utilizing the 5 GHz band. Which three parameters must be met to ensure that wireless clients use the 5 GHz band? (Choose three.) A. Ensure that channel bonding is enabled on the WLAN. B. Ensure that the co-channel interference has not exceeded גˆ’85 dBm. C. Ensure that the UNII-2 extended channels are enabled on the 802.11a radios. D. Ensure that the client is receiving RSSI above the minimum band select RSSI threshold. E. Ensure that the client is dual-band capable. F. Ensure that the WLAN has 802.11a enabled.  Suggested Answer: CDE
An enterprise is using the wireless network as the main network connection for corporate users and guests. To ensure wireless network availability, two standalone controllers are installed in the head office. APs are connected to the controllers using a round-robin approach to load balance the traffic. After a power cut, the wireless clients disconnect while roaming. An engineer tried eping from the controller but fails. Which protocol needs to be allowed between the networks that the controllers are installed? A. IP Protocol 67 B. IP Protocol 77 C. IP Protocol 87 D. IP Protocol 97 Â Suggested Answer: D
A company wants to replace its existing PBX system with a new VoIP System that will include wireless IP phones. The CIO has concerns about whether the company's existing wireless network can support the new system. Which tool in Cisco Prime can help ensure that the current network will support the new phone system? A. Location Readiness B. Site Calibration C. Map Editor D. Voice Readiness  Suggested Answer: D
An engineer is designing a new wireless network. The network needs to meet these requirements: ✑ support a high wireless client concentration ✑ support data over wireless ✑ support voice over wireless ✑ avoid interference Which design approach should be taken? A. 5 GHz frequency band with channel bonding, to support 40 MHz channels B. 5 GHz frequency band without channel bonding, to support 20 MHz channels C. 2.4 GHz frequency band without channel bonding, to support 20 MHz channels D. 5 GHz frequency band with channel bonding, to support 80 MHz channels  Suggested Answer: C
Refer to the exhibit. What is the main reason why the Wi-Fi design engineer took a different approach than installing the APs in the offices, even though that installation provides better coverage? A. aesthetics B. transmit power considerations C. antenna gain D. power supply considerations  Suggested Answer: B
What is the recommended cell overlap when designing a wireless network for Cisco Hyperlocation? A. 20% B. 30% C. 40% D. 50% Â Suggested Answer: A
An engineer is designing a network deployment for a college with six buildings. Each building must have a WLC located in the IDF to support the APs. The wireless clients should be able to roam between the APs and the controllers. Which type of wireless architecture should be used? A. cloud B. autonomous C. centralized D. distributed  Suggested Answer: D
Why is 802.11a connectivity reduced in an X-ray room? A. X-rays create significant non-Wi-Fi interference on the 802.11a band. B. X-rays impact the 802.11a UNII-2 channels that cause access points to dynamically change channels. C. X-rays within these rooms cause multipath issues. D. X-ray rooms exhibit increased signal attenuation. Â Suggested Answer: D
A network engineer is designing a new wireless network. The network needs to have these characteristics: ✑ support high client concentration ✑ optimize client performance ✑ avoid interference Which approach should be taken? A. Deploy APs near each other for 2.4 GHz coverage, and disable the 5 GHz radios for all APs. B. Deploy APs near each other for 5 GHz coverage, and disable the 2.4 GHz radios for some APs. C. Deploy APs near each other for 2.4 GHz coverage, and disable the 5 GHz radios for some APs. D. Deploy APs near each other for 5 GHz coverage, and enable the 2.4 GHz radios for all APs.  Suggested Answer: C
A customer called with a requirement that internal clients must be on different subnets depending on the building they are in. All APs are operating in local mode and will not be modified, and this is a single controller solution. Which design approach creates the desired result? A. Create FlexConnect groups, place the access points in, and set the correct VLAN to SSID mapping based on location. B. Create mobility anchors for the SSID, and on the controller under the internal SSID, create a foreign map to the desired VLAN based on location. C. Create AP groups for each desired location, map the correct VLANs to the internal SSID, and add the APs for that location. D. Create an SSID, place it to the desired VLAN under WLANs, and configure 802.1x in ISE to assign the correct VLAN based on the SSID from which the client is authenticating. Â Suggested Answer: C
An engineer is designing an outdoor mesh network to cover several sports fields. The core of the network is located in a building at the entrance of a sports complex. Which type of antenna should be used with the RAP for backhaul connectivity? A. 5 GHz, 8-dBi omnidirectional antenna B. 2.4 GHz, 8-dBi patch antenna C. 5 GHz, 14-dBi patch antenna D. 2.4 GHz, 14-dBi omnidirectional antenna  Suggested Answer: A
An engineer must perform an assessment of a customer LAN for a future IEEE 802.11ac Wave 2 wireless deployment. All access switches are Fast Ethernet- capable only, and the wired infrastructure between existing APs and access switches is based on the CAT 6A standard. Which two actions provide maximum support of Cisco 3800 Series access points? (Choose two.) A. Replace the existing switches with mGig switches. B. Ensure that cable distances between access switches and APs are not longer than 55 meters. C. Replace the existing switches with gigabit switches with 10 G uplinks. D. Ensure that cable distance between access switches and APs are not longer than 100 meters. E. Replace the existing wiring infrastructure with the CAT-7E wiring standard. Â Suggested Answer: AC
An engineer is reducing the subnet size of the corporate WLAN by segmenting the VLAN into smaller subnets. Clients will be assigned a subnet by location. Which type of groups should the engineer use to map the smaller subnets to the corporate WLAN? A. WLC port groups B. RF groups C. AP groups D. interface groups  Suggested Answer: D
What is the attenuation value of a human body on a wireless signal? A. 3 dB B. 4 dB C. 6 dB D. 12 dB Â Suggested Answer: B
An engineer has deployed a group of APs in an auditorium and notices that the APs are showing high co-channel interference. Which profile is used to adjust the parameters for these high-density APs? A. QoS profile B. AVC profile C. RF profile D. ISE profile  Suggested Answer: A
A customer has determined that aesthetics is a primary concern for their upcoming guest deployment. Which design consideration can be leveraged to address this concern? A. Paint the access point to cover the LED from being noticeable. B. Use enclosures to hide the wireless infrastructure in the surrounding environment. C. Use AIR-AP-BRACKET-1 to allow for greater mounting locations D. Deploy environmentally friendly cabling components to blend into the environment. Â Suggested Answer: D
An enterprise network administrator is asked to set up an experimental WLAN for a collaboration project with a local service provider. The WLAN must be anchored to a WLC in the service provider data center using legacy mobility mode. After the configurations are completed on the WLCs and the firewalls in the path, the data path mobility tunnel is failing to come up. What should be performed by the administrator to debug the issue? A. Establish a Telnet connection from a local PC to the firewall on port 97. B. Use the eping command on the WLC. C. Establish a Telnet connection from a local PC to the firewall on port 16666. D. Use the mping command on the WLC. Â Suggested Answer: A Reference: https://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/107458-wga-faq.html
A wireless engineer is designing a wireless network to support real time applications over wireless. Which IEEE protocol must the engineer enable on the WLC so that neighbor list radio management packets are sent to the wireless devices? A. 802.11w B. 802.11r C. 802.11i D. 802.11k  Suggested Answer: D
An engineer must ensure that the new wireless LAN deployment can support seamless roaming between access points using a standard based on an amendment to the 802.11 protocol. Which protocol must the engineer select? A. 802.11i B. 802.11ac C. 802.11r D. 802.11e  Suggested Answer: C
Refer to the exhibit. An engineer determined that during a recent controller failure, some APs did not failover to their secondary controller based on the network design, which has sufficient licenses for all APs. The controllers are not in a mobility group but have A records for their hostnames in DNS. Which setting needs to be addressed? A. The controllers must be in the same mobility group. B. The secondary controller IP address is incorrect. C. DNS hostnames are required to be FQDN. D. The AP failover priority was not set high enough. Â Suggested Answer: D
Refer to the exhibit. An enterprise has offices spread around the globe. The APs are connected to different controllers installed in separate datacenters. The IT team wants to allow clients to roam from controllers in group ABC to controllers in group XYZ. Which feature must be incorporated in the design to accomplish this task? A. switch peer group B. workgroup bridge C. mDNS gateway D. mobility lists  Suggested Answer: D
The wireless team must configure a new voice SSID for optimized roaming across multiple WLCs with Cisco 8821 phones. Which two WLC settings accomplish this goal? (Choose two.) A. Configure AVC profiles on the SSID. B. Configure mobility groups between WLCs. C. Use AVC to tag traffic voice traffic as best effort. D. Configure AP groups between WLCs. E. Use Cisco Centralized Key Management for authentication. Â Suggested Answer: BE
An enterprise is using two wireless controllers to support the wireless network. The data center is located in the head office. Each controller has a corporate WLAN configured with the name Copr-NET392267230WLC-1 and Corp-NET68371638WLC-2. The APs are installed using a round-robin approach to load balance the traffic. What should be changed on the cofiguration to optimize roaming? A. Use the same WLAN name for the corporate network on both controllers. B. Move all access points to one controller and use the other as N+1 HA. C. Move the controllers to an external data center with higher internet speeds. D. Place the access points per floor on the same controller. Â Suggested Answer: D
An enterprise has moved most services to the cloud, including email applications and real-time communication. Which feature must be enabled on the wireless network to improve the user experience? A. radio management B. fast secure roaming C. QoS D. interference mitigation  Suggested Answer: B
APs in a remote office recently have been converted from local mode to FlexConnect to take advantage of the local switching. After the change, remote wireless users report voice quality issues and bad quality on wireless IP phones while roaming. A debug is performed, and it is noticed that the 802.11r Fast Transition is not working as expected, like on local mode AP, though the same WLAN configuration is in place. What is the cause of the issue regarding the FlexConnect APs? A. They do not support 802.11r FT. B. They must be added into AP groups along with a common RF profile. C. They must be in a FlexConnect group to support 802.11r FT. D. They must be added to AP groups to support fast roaming methods. Â Suggested Answer: A Reference: https://www.cisco.com/c/dam/en/us/td/docs/wireless/controller/technotes/80211r-ft/b-80211r-dg.html
Multiple WLCs are implemented in a high-availability configuration in a mobility group. APs are deployed with only a primary controller assigned. By default, which mobility group member controller do the orphaned APs join in the event of a failed controller? A. controller with the most available AP free license capacity B. controller with the lowest percent of associated APs per license capacity C. controller with the least CPU utilization over the last reporting period D. controller with the least number of associated APs  Suggested Answer: D
An engineer has designed an anchor redundancy for guest clients connecting to SSID with auto-anchor configured. After adding a second Anchor WLC under the SSID mobility anchor list, clients are load-balanced between existing and new anchors instead of having one anchor as active and the other one as standby. Which feature should be included in the design that will be configured on the WLC running 8.1 or above to ensure anchor redundancy? A. Auto-Anchor Foreign Mapping B. AP groups C. Guest Anchor Priority D. 802.11r  Suggested Answer: C
An engineer must configure the virtual IP address on multiple controllers in a mobility group. Which rule must the engineer follow to ensure proper roaming? A. Ensure that the DNS entry is tied to the virtual IP address of the WLC. B. Use a unique IP address for each WLC. C. Ensure that the DNS Host Name field is defined. D. Use the same IP address for each WLC. Â Suggested Answer: A
A wireless engineer must design mobility between two buildings at a campus site. The engineer has one controller at each site. The engineer is investigating inter- controller CAPWAP data and control traffic. Which two ports must be open? (Choose two.) A. 5246 B. 5247 C. 8443 D. 16666 E. 16667 Â Suggested Answer: CD
During a client roaming event, which device is responsible for communicating the new Layer 2 EID mapping of a wireless supplicant to the fabric domain? A. WLC B. BN C. CP2 D. CP1 Â Suggested Answer: A
An enterprise is using a Cisco AireOS controller and Wi-Fi 6 APs. The controller is installed in the head office, and the employees primarily use Apple OS devices. The APs broadcast WLAN ENT-WLAN406558520-1 for the employees and a guest WLAN with similar naming. What needs to be enabled on the controller to optimize roaming? A. Aggregated Probe Response Optimization B. Fast SSID Changing C. Load Balancing Window D. Client Timers  Suggested Answer: B
Guest anchoring is configured for a newly created SSID for a company. It has been noticed that the mobility tunnels are not up and that MPING fails from your foreign WLC to the anchor WLC. What is the reason that it is failing? A. A rule is needed at the firewall to allow UDP port 16666 for communication to work. B. A rule is needed at the firewall to allow UDP port 97 for communication to work. C. A rule is needed at the firewall to allow TCP port 97 for communication to work. D. A rule is needed at the firewall to allow TCP port 16666 for communication to work. Â Suggested Answer: A
An engineer has configured guest anchoring for a newly created SSID however, the mobility tunnels are not up, and EPING is failing from the foreign WLC to the anchor WLC. Which traffic flow must be allowed at the firewall to enable the communication? A. UDP port 16666 B. IP protocol 97 C. UDP port 97 D. TCP port 97 Â Suggested Answer: A
Refer to the exhibit. Which two statements about Cisco Prime Infrastructure are true? (Choose two.) A. It presents the recommended number of APs for the selected coverage area based on the selections made. B. Planning mode requires a special license in Cisco Prime Infrastructure. C. It shows the map editor feature in Cisco Prime Infrastructure. D. Controllers must be synchronized with Cisco Prime Infrastructure for planning mode to work. E. It shows the planning mode feature in Cisco Prime Infrastructure. Â Suggested Answer: DE
Refer to the exhibit. An engineer is about to establish a mobility peer connection between a Cisco Catalyst 9800-CL version 16.10.1e and Cisco AireOS 5520 version 8.8.120.0. The data path between the 9800-CL and AireOS 5520 is down, but its control path is up. Based on the configuration, what is the cause of the issue? A. The certificate hash key is incorrect leading to data path down. B. The data-link-encryption configuration is missing from the 9800-CL configuration. C. Encrypted mobility is being used in the 5520 configuration leading to data path down. D. CAPS is used to key in MAC address in the IOS_XE configuration leading to data path down. Â Suggested Answer: B Reference: https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/213913-building-mobility-tunnels-on-catalyst- 98.html#anc9
An AP is receiving 802.11 packets on its 802.11a radio with an RSSI value of -77 dBm. The current AP is part of an AP group that has been assigned an RF profile with RX-SOP set to Medium for 802.11a. Which action does the AP take with the packets? A. All frames are classified as non-Wi-Fi frames and are not decoded by the 5 GHz radio. B. Frames are decoded by the 2.4 GHz radio. C. All frames are classified as non-Wi-Fi frames and are not decoded by the 2.4 GHz radio. D. Frames are decoded by the 5 GHz radio. Â Suggested Answer: C
An engineer is designing a wireless network to support hyperlocation in an environment that already has APs installed. During the survey, the engineer notices that the APs are pointing in different directions. What is the recommended way to align the APs to easily determine AP Azimuth, X-Y, and ceiling height information, and minimize confusion and user-entered errors? A. APs must be aligned pointing toward the nearest wall. B. APs must be aligned pointing toward each other. C. APs must be aligned in the same direction. D. APs can be aligned all four ways. Â Suggested Answer: C
Refer to the exhibit. An enterprise is using wireless as the main network connectivity for clients. To ensure service continuity, a pair of controllers will be installed in a datacenter. An engineer is designing SSO on the pair of controllers. What needs to be included in the design to avoid having the secondary controller go into maintenance mode? A. The redundancy port must be the same subnet as the redundancy mgmt. B. The keep alive timer is too low, which causes synchronization problems. C. The connection between the redundancy ports is missing. D. The Global Configuration of SSO is set to Disabled on the controller. Â Suggested Answer: B
When a wireless survey is conducted at a customer facility, signal attenuation in an area that is surrounded by thick glass walls is noted as 2dB. When Cisco Prime Infrastructure is configured, which obstacle must be placed in a map editor to represent the impact that the glass wall will have on the RF signal in the facility? A. heavy door B. glass C. thick wall D. light wall  Suggested Answer: B
An engineer is designing a wireless network to support high availability. The network will need to support the total number of APs and client SSO. Live services should continue to work without interruption during the failover. Which two requirements need to be incorporated into the design to meet these needs? (Choose two.) A. controller high availability pair with one of the WLCs having a valid AP count license B. WLC 7.5 code or more recent C. redundant vWLC D. 10 sec RTT E. back-to-back direct connection between WLCs  Suggested Answer: AE
During a wireless design all APs are mapped to designated controllers in case of a failure. The controllers are located in the same data center but in different racks. An AP failed over to a controller that was not defined on its High Availability tab. The customer does not want the AP to move back to its defined Cisco WLCs until they manually intervene. What needs to be addressed in the design? A. Set AP fallback to enabled. B. Set AP fallback to disabled. C. Change the HA SKU secondary unit option. D. Change the default mobility domain. Â Suggested Answer: B
A network engineer is configuring high availability on an access point. What is the maximum number of controllers available to be configured? A. 1 B. 2 C. 3 D. 4 Â Suggested Answer: B
How does AP failover priority for access points function when configured with priority 1 or 4? A. When configured with priority 1, the access point is assigned with the highest priority level, and it is marked as critical. This access point fails over before other access points with the lower priority when there is primary controller failure. B. When configured with priority 4, the access point is assigned with the highest priority level, and it is marked as critical. This access point fails over before other access points with the lower priority when there is primary controller failure. C. When configured with priority 4, the access point is assigned with the lowest priority level, and it is marked as low. This access point fails over after other access points with the higher priority when there is primary controller failure. D. When configured with priority 1, the access point is assigned with the medium priority level, and it is marked as medium. This access point fails over after other access points with the higher priority when there is primary controller failure. Â Suggested Answer: B
An engineer is trying to determine the most cost-effective way to deploy high availability for a campus enterprise wireless network that currently leverages three wireless LAN controllers. Which architecture should the engineer deploy? A. N+N with SSO B. N+1 solution without SSO C. N+N solution without SSO D. N+1 with SSO Â Suggested Answer: D
Refer to the exhibit. A client roams between two APs that are registered to two different controllers, where each controller has an interface in the client subnet. Both controllers are running AireOS. Which scenario explains the client roaming behavior? A. Controllers exchange mobility control messages (over UDP port 16666), and the client database entry is moved from the original controller to the new controller. B. Controllers do not exchange mobility control messages (over UDP port 16666), and the client database entry is not moved from the original controller to the new controller. C. Controllers exchange mobility control messages (over UDP port 16666), and a new client session is started with the new controller. D. Controllers exchange mobility control messages (over UDP port 16666), and the client database entry is tunneled from the original controller to the new controller. Â Suggested Answer: A
The wireless survey report shows APs staggered throughout a facility, with several of them placed on the exterior walls. Other APs are located at building corners and major turns in the structure layout. Assuming that all survey locations are optimized with a minimum of -67 RSSI at cell edges with 20% overlapping cells, for which purpose is this survey model used? A. location services, VoIP, data, and video B. streaming video with VoIP, data, and HD resolution C. location-based services, BYOD preparation, and HD video streaming D. voice, data clients, and video on demand  Suggested Answer: A
Which CLI command does an engineer use to validate that the redundancy peer of a Stateful Switchover pair of controllers is up and connected? A. rping B. ping C. eping D. mping  Suggested Answer: B
An engineer is designing a point-to-multipoint mesh network. Which two AP configurations must be completed for a site survey? (Choose two.) A. MAP hostnames B. Rx power C. mesh on 2.4 GHz band D. bridge group name E. Tx power  Suggested Answer: BE
How should the concept of mobility domains and mobility groups be explained to a customer? A. A mobility group does not constrain the distribution of security context of a client and also does not constrain AP fail-over between controllers when the WLC is in the same mobility domain. B. If WLCs are in the same mobility domain, they communicate with each other but, if an anchor WLC is present, it must be in the same mobility domain for communication to be possible. C. If WLCs are in the same mobility domain, they communicate with each other. Mobility groups constrain the distribution of security context of a client and also constrain AP fail-over between controllers. D. WLCs do not need to be in the same mobility domain to communicate with each other. Mobility groups constrain the distribution of security context of a client and also constrain AP fail-over between controllers. Â Suggested Answer: C
An engineer must produce a passive survey report. The coverage heat map shows the entire site with all signal levels. To see only the desired coverage, which action must the engineer take? A. Change the color scheme to show the desired heat map. B. Use the RSSI calibration tool to configure the receiver sensitivity. C. Use the RSSI slider to set the heat map to the desired cutoff filter. D. Filter the results to show the desired APs only. Â Suggested Answer: D
DRAG DROP - Drag and drop the characteristics from the left onto the correct functionalities on the right. Select and Place:Â Suggested Answer:
An engineer must perform a Layer 2 survey for a mining facility. Which type of antenna does the engineer use in the mine shaft? A. omnidirectional B. patch C. internal D. dipole  Suggested Answer: A
Which UDP port numbers are used for exchange mobility packets in an AireOS wireless deployment? A. UDP 16666 for control plane, EoIP (IP protocol 97) for data plane B. UDP 16668 for control plane, UDP 16667 for data plane C. UDP 16667 for control plane, UDP 16666 for data plane D. UDP 16666 for control plane, UDP 16667 for data plane  Suggested Answer: D
An engineer is designing a new wireless network. Based on the design, OfficeExtend AP functionality must be used. Which type of license must the Cisco 5520 WLC v8.3 have? A. Base license B. OfficeExtend AP license C. WPlus license D. Plus license  Suggested Answer: A
An engineer configured the optimized client roaming on Cisco WLC with an RSSI threshold of 72dBm. Clients report frequent disconnections. What must be configured for the AP to guide the client to a better AP? A. Enable BSS transition at the radio level and optimized roaming on the SSID. B. Disable coverage hole detection on the SSID and enable BSS transition on the SSID. C. Disable optimized roaming and enable 802.11v support on the SSID. D. Enable BSS transition on the SSID and optimized roaming at the radio level. Â Suggested Answer: D
An engineer is performing an AP-on-a-stick survey and finds that the 5 GHz channel overlap is too high when an appropriate number of APs are used for the density requirements. Which two actions during the survey reduce channel overlap? (Choose two.) A. Raise the minimum data rate to 24 Mbps. B. Increase AP transmit power to improve the SNR. C. Allow the use of UNII-2e channels. D. Use directional antennas to limit the coverage area of some APs. E. Enable power saving mode. Â Suggested Answer: DE
A customer has two Cisco wireless controllers named WLC-A and WLC-B. Each controller is in a different building on a campus. The WLCs have different Layer 3 interfaces and broadcast the same SSIDs from their respective APs. Users must remain connected to the same VLAN and maintain their IP addresses during roaming from the APs that are attached to WLC-A and WLC B. Which action accomplishes the requirement? A. Create a mobility group between the two WLCs to allow auto-anchoring. B. Create an SSO cluster to ensure that client sessions sync between WLCs. C. Enable 802.11r on each SSID on both WLCs to allow caching of the PMK. D. Enable AP groups using the same name on both WLCs for each group. Â Suggested Answer: A
An engineer is upgrading the legacy APs to 802.11ac Wave 2 capable APs. The existing gigabit uplinked switches provide 802.3at. Which switch limitation is a concern? A. interface throughput B. high availability C. collision domains D. output power  Suggested Answer: A
An engineer is designing a mesh wireless network. The network must fulfill these requirements: • bridge mode APs must be used • WPA2-PSK • minimize wireless traffic tunneled to the WLC A. bridge RAP B. Flex + Bridge C. FlexConnect D. bridge MAP  Suggested Answer: D
A wireless consultant reviewing the installation of an old wireless network. The existing AireOS controllers are running software version 6.0.4539:44024. The customer is using OEAP and wants to keep this functionality. Which licenses should the consultant propose with the latest controller software version? A. Base B. Premium C. WPlus D. Advanced  Suggested Answer: C
An engineer must perform a predictive design for a wireless network for location readiness and to mitigate interference. Which power level does the engineer use? A. 10 mw B. 18 mw C. 20 mw D. 50 mw  Suggested Answer: B
A customer Wi-Fi deployment is experiencing the sticky client problem and must enable the optimized roaming feature. The wireless clients have valid security credentials for an SSID and can see an AP that offers that SSID to join. What must be configured to enhance roaming? A. RSSI threshold B. disable DFS C. disable 802.11k D. enable data rates  Suggested Answer: A
An engineer is trying to configure the APs installed in a new auditorium to use 40 MHz channels with high data rates and lower TX power. The APs in the building hallway must use lower-density design settings configured for the rest of the building. Which two configurations achieve this design? (Choose two.) A. TPC B. DCA C. AP group D. RRM E. RF profile  Suggested Answer: CE
An engineer must optimize client roaming after noticing that clients in the environment are not roaming as expected. Upon reviewing an over-the-air packet capture, the engineer sees that the AP is sending a BSS Transition Management query to the client, which causes it to roam. The disassociation imminent feature is not enabled on the WLAN. What is the cause of the issue? A. Low RSSI check is enabled. B. Fast Transition is disabled. C. Band Select is enabled. D. Optimized roaming is enabled. Â Suggested Answer: B
An engineer is setting up the WLC to support a high-density design for a lecture hall. The engineer must modify the existing high-density RF profile to obtain a smaller cell size. Also, the clients must connect to the nearest AP using the highest possible data rates. Which setting allows this design? A. AP load balance B. client distribution C. power threshold D. RX-SOP threshold  Suggested Answer: C
A customer has a Cisco wireless network that supports VoWLAN services. The customer wants supported voice clients to receive roaming recommendations and suggestions from APs. This functionality must not impact non-VoWLAN clients. What should be enabled on the VoWLAN SSID? A. 802.11r Fast Transition B. 802.11k neighbor lists C. CCKM with 802.1X D. 802.11v BSS Transition Management  Suggested Answer: D
A network consultant must create a wireless design with these characteristics: • Provide coverage in a single contiguous space. • Support dual-band wireless coverage. • Use nine APs for full coverage in a 5 GHz band. What must the engineer do to mitigate co-channel interference and maintain coverage in 2.4 GHz? A. Adjust the TPC neighbor threshold value to -64 dBm on the 2.4 GHz band. B. Configure static channel and power settings of the 2.4 GHz radios. C. Disable 2.4 GHz radios on selective APs. D. Deactivate low data rates on the 2.4 GHz band.  Suggested Answer: B
An architect configures a set of AirOS controllers to be in the same mobility group as the existing controllers. The implementation should facilitate inter-controller roaming for users in their new campus. After the configuration, the mobility tunnel is not operational for the data path in the network. Which two validations should be performed? (Choose two.) A. firewall port 16666 B. mping C. eping D. rping E. firewall IP protocol 97 Â Suggested Answer: AE
A customer has a central Cisco WLC that manages APs in FlexConnect mode. The wireless infrastructure supports multiple small branches. One branch deploys new CCX wireless phones that are authenticated by a central Cisco ISE via PEAP/IMSCHAPv2, and traffic is switched locally. The customer must reduce the number of full authentication requests and optimize roaming for the new phones. Which action accomplishes the requirement? A. Enable CCKM on the voice SSID and add APs to a FlexConnect group. B. Enable Aironet IE on the voice SSID and add APs to an AP group. C. Enable Aironet IE on the voice SSID and add APs to a FlexConnect group. D. Enable CCKM on the voice SSID and add APs to an AP group. Â Suggested Answer: C
A customer uses a Cisco 5520 WLC that is connected via a single 10-GB interface to manage the wireless network. The wireless network includes 500 APs for the campus network. The customer wants to add 300 APs and is concerned about traffic load and lack of redundancy. The purchase of a second controller is not an option. Which design approach mitigates the customer concerns? A. Connect a second 10-GB interface on the WLC and set the port as a secondary port. B. Connect a second 10-GB interface on the WLC and implement LAG. C. Implement a vWLC and configure SSO with the WLC. D. Implement a vWLC and configure N+1 redundancy with the WLC. Â Suggested Answer: B
Refer to the exhibit. An engineer must design a mobility group that has these requirements: • The mobility group must consist of five WLCs. • All WLCs must run software version 8.0 or later. • The WLCs must connect via an IPv4 network. • Two of the WLCs must be in an SSO high availability pair. Which two configurations must be included in the design? (Choose two.) A. All the WLCs must be of the same model or type. B. Only WLCs in an SSO high availability pair must use the same virtual IP address. C. The WLAN SSID must be consistent across all the WLCs. D. All the WLCs must run the same software version. E. Each WLC must use the same mobility domain name.  Suggested Answer: DE
Refer to the exhibit. A network engineer has identified that during a recent controller failure, several APs failed over to the tertiary controller instead of the secondary controller. The configuration from one of the APs is provided. Which design consideration led to the issue? A. The secondary controller was at capacity. B. The secondary controller is an SSO configuration. C. The tertiary controller is an HA-SKU controller, so it took priority. D. The tertiary controller is in the same subnet as the primary controller. Â Suggested Answer: C
A network consultant is designing a wireless network for a government agency. The customer requires high security between any device communication. The design includes AireOS, Cisco IOS-XE controllers, and Cisco 4800 Series APs. Which requirement must be met to enhance the mobility group security? A. Use a different group name for each mobility member. B. Enable MIC authentication between the mobility group members. C. Enable Mobility Encryption on the network. D. Use a complex group name for the mobility group. Â Suggested Answer: B
An engineer is working for a manufacturing company that has a centralized deployment model. Guests at headquarters need wireless access for presentations, demonstrations, and sharing of information. The engineer must provide external users with secure guest access by connecting to anchor controllers on the DMZ. Auto-Anchor Mobility has been selected in the mobility group to accomplish it. Both anchors are configured as part of the mobility group for HQ. Which design approach ensures that clients connect to the primary controller first and are pushed to the secondary if the primary fails? A. Set the Anchor priority for the primary controller to 1. B. Set the Anchor priority for the secondary controller to 1. C. Configure ECMP but weigh the cost to be higher to go to the primary. D. Configure ECMP but weigh the cost to be higher to go to the secondary. Â Suggested Answer: A
An engineer working for an enterprise deployed multiple Cisco WLCs. A controller that sits in the R&D division is connected through a firewall and is part of the same mobility group. The engineer must ensure that the mobility tunneling is available through the firewall and test it as R&D engineers roam the production floor within their department. How is this requirement met? A. mping on UDP port 16666 and eping on Protocol 96 between management ports B. mping on UDP port 16666 and eping on Protocol 97 between management ports C. mping on UDP port 16667 and eping on Protocol 97 between management ports D. mping on UDP port 16667 and eping on Protocol 96 between management ports  Suggested Answer: B
Refer to the exhibit. Client A is roaming from AP1 on WLC1 to AP2 on WLC2. The client roams between two APs registered to two different controllers. The WLAN on the two controllers is on a different subnet. Which scenario explains the client's roaming behavior? A. The client database entry is different than that of Layer 2 roam. (Instead of copying, it moves the database to the new controller.) B. The client database entry is different than that of Layer 2 roam. (Instead of moving, it copies the database to the new controller.) C. The client database entry is different than that of Layer 2 roam because the client database is neither moved nor copied into the new controller. D. The client database remains in the mobility anchor controller and it is not copied or moved. Â Suggested Answer: B
Refer to the exhibit. A customer is deploying a Greenfield 802.11n network with data, voice, and location awareness using APs with the WSSI modules. Which two settings in the Cisco Prime Infrastructure Planning Tool, when selected, provide a more accurate prediction of the number of APs the customer must purchase for the new facility? (Choose two.) A. Override Coverage per AP B. Voice C. Data/Coverage D. Location with Monitor Mode APs E. Location  Suggested Answer: AC
A 60,000-square foot outdoor area must be surveyed. The survey must be completed in the least amount of time. Which tool or equipment is used when performing the site survey? A. additional access points that use sniffer mode B. site survey tool that has modules in sniffer mode C. additional access points that use GPS mode D. site survey tool that has a GPS module  Suggested Answer: D
A network engineer is retrofitting an existing building wired with Category 5e with Cisco Aironet 3800 Series APs and mGig switches. Which cable length allows for 5G operation? A. 70 m B. 120 m C. 130 m D. 150 m  Suggested Answer: A
Refer to the exhibit. A company is designing a Cisco wireless solution that has two WLCs named WLC1 and WLC2 and several APs. An AP named AP12 is a critical AP and is provisioned to be installed in hallway 6, which is located just outside the office of the company director and must always connect to WLC1. Which priority level must be incorporated in the design for AP12? A. 1 B. 2 C. 3 D. 4 Â Suggested Answer: A
A customer with two Cisco 5520 WLCs that work as a primary and secondary had some switching issues and the primary controller lost connectivity. Immediately all APs went to discovery and joined the secondary controller. After recovering from the issue, the primary controller is online, but no APs return to it. All APs remain in the secondary controller. Which setting advises the APs to return to their primary controller? A. AP fallback B. AP multicast mode C. AP heartbeat timeout D. broadcast forwarding  Suggested Answer: A
A company installs a new anchor controller in the DMZ. The company has not upgraded the foreign controller for several years. The foreign controller runs code 7.5. The IT administrator suggests that the company upgrade the foreign controller and the new anchor controller to 8.10 or later. Which two benefits must be incorporated into the design regarding the code upgrade? (Choose two.) A. The foreign controller load balances guest clients across the list of anchor controllers B. Guest clients are load balanced in round-robin fashion among the anchor controllers. C. User devices must upgrade their WLAN card drivers. D. Guest clients are tunneled to anchors with the highest priority. E. The foreign controller designates one anchor as primary and one or more anchors as secondary. Â Suggested Answer: DE
A customer has a single anchor WLC named Anchor A. Anchor A is in a DMZ and provides guest access. The customer wants to deploy an additional anchor controller named Anchor B to provide redundancy if Anchor A fails. Which design approach should be taken for the guest WLAN priority on the foreign WLC for each anchor WLC? A. Set Anchor A to priority 3 and Anchor B to priority 3. B. Set Anchor A to priority 3 and Anchor B to priority 1. C. Set Anchor A to priority 1 and Anchor B to priority 1. D. Set Anchor A to priority 1 and Anchor B to priority 3. Â Suggested Answer: B
An engineer must design a WLAN that can handle voice traffic and location-based services. Which two design features enable both services to function properly? (Choose two.) A. Use every channel possible in 5 GHz. B. Put APs in corners of each floor for triangulation. C. Have a 15% overlap of cell coverage. D. Use every channel possible in 2.4 GHz. E. Have a 25% overlap of cell coverage. Â Suggested Answer: CE
A wireless network consists of: • two IOS XE controllers installed in a data center • 9100 series APs • corporate and a guest WLAN The customer must high availability pair two Cisco WLCs for the client SSO. Which two design approaches must the engineer take to meet the requirement? (Choose two.) A. The controllers must have the same number of licenses. B. Both WLCs must have the same redundancy management IP address. C. Both WLCs must have the same service port IP address. D. Each WLC must have a unique redundancy management IP address. E. The controllers must run the same operating system version.  Suggested Answer: BE
A network engineer must design a new wireless solution for a company, but the budget can only stretch to include a single Cisco 9800-40 WLC. The company requires high availability between the WLC and the core switch in the event of a cable failure. The WLC must dynamically manage port redundancy and perform load balancing between APs transparently. Which design approach must the engineer take to meet the requirements? A. LAG B. Multi-LAG C. LACP D. PAgP Â Suggested Answer: A
An engineer is implementing a wireless design for a service provider. The design includes a Catalyst 9800, a stack of two Catalyst 9300X-48HX switches, and 9166 APs. Each AP must be named using the Floor-439412509-01X sting where X is the area number. The engineer wants to connect the APs to the switch stack using POE. How many APs must the engineer connect to the stack so the APs run using full functionalities? A. all ports on switch 2 of the stack B. all ports on switch 1 of the stack C. all ports of the switches D. half ports per switch  Suggested Answer: C
A customer has a Wi-Fi network that is designed to support video over Wi-Fi. The Wi-Fi network has good coverage; however, video multicast traffic is unreliable. Video multicast traffic is reliable on the wired portion of the network. Which performance value indicates an issue with the Wi-Fi multicast traffic? A. jitter B. packet error rate C. throughput D. latency  Suggested Answer: B
A company is in the process of relocating to a new office space and finds out that the Internet circuit will not be ready before the move. The new building has a non-Cisco WLAN to which they can connect. The engineer has a 12-port switch and one Cisco autonomous AP and must connect multiple wired devices. Which additional device is needed to get all clients connected over the workgroup bridge? A. router B. transparent firewall C. hub D. wireless controller  Suggested Answer: C
When a wireless network is designed for location services, how many APs must be heard by each location-ready AP at a signal level of -75 dBm or better? A. three APs B. no more than three APs C. two APs D. at least four APs  Suggested Answer: A
An engineer in a branch office that does not have a wired backhaul must ensure that local clients can be switched locally and authenticated centrally. In which mode must the AP be configured? A. RAP B. Flex+Bridge C. MAP D. Cisco FlexConnect  Suggested Answer: D
An engineer has been tasked with optimizing roaming for all the wireless networks used by shops located in a shopping center. A unique WLAN is assigned to each individual shop named ret470632970B55XX, where the last two digits indicate the shop’s location. The wireless network consists of 9800 controllers and Cisco 9100 APs. What should the engineer configure on the controllers to optimize roaming? A. assign access rules based on location B. disable the 802.11a/b network C. enable AES encryption D. create an interface per shop  Suggested Answer: C
A customer has two Cisco WLCs configured in a SSO cluster. The wireless network supports a large warehouse. The customer purchases new iPads to replace legacy scanners. Both devices connect to a single SSID named Scanning by using WPA2 Personal. The customer wants to use a standards-based method for fast roaming on the new iPads. Which approach meets the scanner requirement and still supports the legacy scanners? A. Enable FT PSK and set Fast Transition to Adaptive for the Scanning SSID. B. Enable FT 802.1X and set Fast Transition to Adaptive for the Scanning SSID. C. Enable optimized roaming globally and enable FT 802.1X on the Scanning SSID. D. Enable optimized roaming globally and enable FT PSK on the Scanning SSID. Â Suggested Answer: A
A customer currently is migrating the old wireless infrastructure to a new Cisco IOS XE-based solution and wants a mobility group configured between a Cisco AireOS WLC and an IOS XE WLC. During the migration phase from AireOS to IOS XE, the Layer 3 roaming between the WLCs must be seamless. Which action meets the requirements? A. For the same SSIDs, use the same VLAN IDs and subnets on both WLCs. B. For different SSIDs, use different VLAN IDs and subnets on both WLCs. C. For different SSIDs, use the same VLAN IDs and subnets on both WLCs. D. For the same SSIDs, use different VLAN IDs and subnets on both WLCs. Â Suggested Answer: A
A company is upgrading the wireless infrastructure and is in a state of transition. Some parts of the company’s building still run on the legacy WLC. The new WLC is not located at the same site as the legacy WLC. The company requires seamless client inter-controller roaming between the new WLC and the legacy WLC, with no disruptions. Both WLCs are separated by firewalls. Which troubleshooting command validates that the mobility control packets between the WLCs can be sent and received? A. mping mobility_peer_IP_address B. debug mobility handoff enable C. debug mobility config enable D. eping mobility_peer_management_IP_address  Suggested Answer: A
An engineer is deploying new APs to serve IEEE 802.11g through 802.11ac clients and wants to use the Ekahau Site Survey tool to verify RF coverage. Management wants the engineer to verify and create coverage maps as quickly as possible. Which configuration accomplishes the goal? A. passive mode with two wireless adapters B. passive mode with one wireless adapter C. active mode with two wireless adapters D. active mode with one wireless adapter  Suggested Answer: A
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