JN0-251 Practice Test Free – 50 Questions to Test Your Knowledge
Are you preparing for the JN0-251 certification exam? If so, taking a JN0-251 practice test free is one of the best ways to assess your knowledge and improve your chances of passing. In this post, we provide 50 free JN0-251 practice questions designed to help you test your skills and identify areas for improvement.
By taking a free JN0-251 practice test, you can:
- Familiarize yourself with the exam format and question types
- Identify your strengths and weaknesses
- Gain confidence before the actual exam
50 Free JN0-251 Practice Questions
Below, you will find 50 free JN0-251 practice questions to help you prepare for the exam. These questions are designed to reflect the real exam structure and difficulty level.
What does Mist with Wi-Fi Assurance do to detect a bad cable connected to an AP?
A. It monitors SNMP trap information.
B. It performs cable tests.
C. It sends probe traffic through the cable connections.
D. It applies machine learning to telemetry data.
You are asked to invite a new user to administer specific sites in read-only mode. Which two roles are available to the new user? (Choose two.)
A. Helpdesk
B. Installer
C. Network Admin
D. Observer
What is the minimum administrator role needed to invite a user to be an administrator of an organization?
A. network admin
B. installer
C. helpdesk
D. super user
Which Mist AI feature would help you to troubleshoot a client’s failed authentication?
A. client dashboard
B. live view
C. dynamic packet capture
D. WLAN profile
What is an advantage of using the Juniper Mist cloud compared to traditional on-premises WLAN controllers?
A. The ability to configure Mist cloud using any connected AP.
B. More robust AP encryption occurs.
C. Machine learning occurs through microservices.
D. Mist updates occur daily.
What are two valid Mist subscription status states in the Mist GUI? (Choose two.)
A. Expired
B. Perpetual
C. Staged
D. Exceeded
You are inviting a new administrator into a Mist organization. In this scenario, which two roles are valid? (Choose two.)
A. Helpdesk
B. Standard
C. Network Admin
D. System Admin
Which administrator role is based on a timed grace period for Mist site and AP configuration access?
A. Observer
B. Network Admin
C. Installer
D. Helpdesk
In the Mist Access Point portfolio, which dedicated device would be used in location-based services (LBS)?
A. AP34
B. AP32
C. BT11
D. AP12
Which device categories are included in WAN Assurance? (Choose two.)
A. EX
B. Mist Edge
C. SSR
D. SRX
Mist Insights will provide detailed information about which two categories? (Choose two.)
A. AP
B. Client
C. Organization
D. Templates
Which two statements are correct about an Organization ID? (Choose two.)
A. The Organization ID is randomly created by the system.
B. The Organization ID is used to identify the organization when using APIs.
C. The Organization ID is the encrypted version of the Organization Name field.
D. The Organization ID is manually defined by the user.
Which two APIs are supported by Mist? (Choose two.)
A. SOAP
B. gRPC
C. Webhook
D. REST
Which Mist location-based feature would be used for wayfinding?
A. Wi-Fi 6
B. Asset Visibility
C. vBLE Engagement
D. Wi-Fi Location
What is a Mist Coverage SLE based upon?
A. an average of client data
B. a summary of switch data
C. a summary of user minutes
D. an average across APs
You just received the newest Mist AP and want to enable a feature that is only available at this time on Release Candidate 1. In this scenario, using the Mist GUI, where would you determine which version of Release Candidate 1 is available for your AP?
A. Support Tickets and Documentation -> Feature Updates
B. Support Tickets and Documentation -> Ports & Endpoints
C. Support Tickets and Documentation -> Mist Edge Updates
D. Support Tickets and Documentation -> Firmware Updates
The Mist help menu provides direct access to which two features? (Choose two.)
A. hardware updates
B. company updates
C. feature updates
D. firmware updates
Where in the Mist UI would the Persistently Failing Clients report be found?
A. Alerts
B. Marvis Actions
C. Successful Connects SLE
D. Insights
Click the Exhibit button.Referring to the exhibit, which Marvis language would you use to query Mist about an issue?
A. natural language
B. SQL
C. Python
D. query language
Which two statements are correct when managing switches located in a Mist-managed site? (Choose two.)
A. The site firewall must allow communications from the switch to Mist.
B. A switch template must be assigned to the site.
C. The site must have Mist access points.
D. The switch must be assigned to the site.
Which two methods are supported for configuring a Mist environment? (Choose two.)
A. Use the API.
B. Use the GUI.
C. Use the CLI.
D. Use NETCONF.
Which protocol is used by Mist access points to discover third-party switches?
A. LLDP
B. SNMP
C. CDP
D. ICMP
Which protocol does the REST API use?
A. syslog
B. SNMP
C. HTTP
D. SSL
Which two statements are correct about creating Mist sites? (Choose two.)
A. A Mist site can only belong to a single organization.
B. You can create and manage multiple sites with a Mist account.
C. You can only create and manage a single site with a Mist account.
D. A Mist site can belong to multiple organizations.
Click the Exhibit button.You notice a green LED emitted from your AP43. Referring to the exhibit, what does this signal indicate?
A. The AP is configured correctly and at least one user is connected to it.
B. The AP is configured correctly with no users connected to it.
C. The AP is not configured correctly with no users connected to it.
D. The AP is not configured correctly but one user is connected to it.
You want to obtain detailed information on a wireless client. In this scenario, which area would you use to accomplish this task?
A. Insights
B. Templates
C. SLEs
D. Security
In a production network, what are two types of security threats? (Choose two.)
A. rogue AP
B. honeypot AP
C. scanning radio
D. neighbor AP
Which Mist supported API is considered data-driven?
A. RESTful
B. Webhook
C. WebSocket
D. gRPC
How should APs be deployed for location-based services (LBS)?
A. with the LED facing the floor
B. with the LED facing the ceiling
C. with the LED facing a wall
D. with the AP mounted on a wall
You are inviting a new administrator into a Mist organization. In this scenario, which two roles are valid? (Choose two.)
A. Advanced
B. Observer
C. Installer
D. Custom
In which two Mist configuration levels would you create labels? (Choose two.)
A. site
B. organization
C. switch
D. location
Which Marvis Action category will detect a bad cable based on information and behavior of a single AP?
A. AP
B. Connectivity
C. Layer 1
D. Switch
What are two prerequisites for adopting Juniper switches for Wired Assurance? (Choose two.)
A. a claim code
B. a Wired Assurance license
C. an activation code
D. an account on manage.mist.com
Mist has detected a bad cable. What are two ways that Marvis determined this result? (Choose two.)
A. It identified network loops.
B. It identified port flapping.
C. It identified interface errors.
D. It identified a missing VLAN.
Which two SLEs report DHCP problems? (Choose two.)
A. Successful Connects
B. Time to Connect
C. Capacity
D. Throughput
Alert templates are assigned to sites in which area of the Mist GUI?
A. Organization Settings
B. Alert Template Configuration
C. Site Group
D. Site Configuration
Which statement is correct about Mist SLEs?
A. A Mist classifier is comprised of multiple SLEs.
B. A Mist SLE is comprised of multiple classifiers.
C. A Mist classifier is comprised of a single SLE.
D. A Mist SLE is comprised of a single classifier.
Which two statements are correct about label configuration? (Choose two.)
A. Labels created at the organization level can be used in WLAN templates.
B. Labels can only be created at the organization level.
C. Labels can be created at either the organization level or site level.
D. Labels created at the site level can be applied at the organization level.
In a Mist deployment, the Radio Resource Management feature is an example of which type of machine learning?
A. visual learning
B. reinforcement learning
C. unsupervised learning
D. supervised learning
You want to review client information about a specific AP. In this scenario, where in the UI would you look?
A. Access Points
B. AP Insights
C. Client Insights
D. SLEs
Which two Mist-supported APIs are considered event-driven? (Choose two.)
A. RESTful
B. gRPC
C. WebSocket
D. Webhook
A user called a help desk to report a Wi-Fi issue. In this scenario, what information must be provided for Marvis to troubleshoot the issue? (Choose two.)
A. user home address
B. the MAC address of the client device
C. the time of the incident
D. the access point to which the client was connected
Besides providing AP configuration status, for which other purpose is the LED used in the location design phase?
A. height orientation
B. channels in use
C. frequency selection
D. antenna orientation
The status of user authentication will affect which pair of SLEs?
A. Successful Connects and Time to Connect
B. Coverage and Roaming
C. Capacity and Successful Connects
D. Time to Connect and Throughput
You want to determine where you have coverage issues in your network using Marvis Actions. Which Marvis Action category should you use in this situation?
A. Connectivity
B. Application
C. Clients
D. AP
How does Mist detect rogue APs?
A. by using the AP’s 2.4 GHz radio band
B. by using Radio Resource Management (RRM)
C. by using the AP’s third dedicated radio
D. by using the AP’s 5 GHz radio band
Mist cloud supports single sign-on in which two scenarios? (Choose two.)
A. account login used for NETCONF
B. Wi-Fi guest login access
C. account login used for the RESTful API
D. admin login to the Mist portal
What are two requirements to successfully provision a Juniper EX Series switch into Mist? (Choose two.)
A. outbound TCP 2200 access
B. Internet connectivity
C. static IP
D. inbound TCP 443 access
Which administrator role must you have to view audit logs?
A. Installer
B. Network Admin
C. Super User
D. Observer
What is the recommended minimum number of APs that should have line of sight (LoS) for a device that uses Wi-Fi location-based services?
A. 5
B. 6
C. 3
D. 4
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