RHCSA-EX200 Practice Test Free – 50 Questions to Test Your Knowledge
Are you preparing for the RHCSA-EX200 certification exam? If so, taking a RHCSA-EX200 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 RHCSA-EX200 practice questions designed to help you test your skills and identify areas for improvement.
By taking a free RHCSA-EX200 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 RHCSA-EX200 Practice Questions
Below, you will find 50 free RHCSA-EX200 practice questions to help you prepare for the exam. These questions are designed to reflect the real exam structure and difficulty level.
SIMULATION -
Create a 2G swap partition which take effect automatically at boot-start, and it should not affect the original swap partition.
Suggested Answer: See explanation below.
# fdisk /dev/sda
p
(check Partition table)
n
(create new partition: press e to create extended partition, press p to create the main partition, and the extended partition is further divided into logical partitions)
Enter –
+2G
t
l
W –
partx -a /dev/sda
partprobe
mkswap /dev/sda8
Copy UUID –
swapon -a
vim /etc/fstab
UUID=XXXXX swap swap defaults 0 0
(swapon -s)
SIMULATION -
Find the rows that contain abcde from file /etc/testfile, and write it to the file/tmp/testfile, and the sequence is requested as the same as /etc/testfile.
Suggested Answer: See explanation below.
# cat /etc/testfile | while read line;
do
echo $line | grep abcde | tee -a /tmp/testfile
done
OR –
grep `abcde’ /etc/testfile > /tmp/testfile
SIMULATION -
Create a catalog under /home named admins. Its respective group is requested to be the admin group. The group users could read and write, while other users are not allowed to access it. The files created by users from the same group should also be the admin group.
SIMULATION -
Add 3 users: harry, natasha, tom.
The requirements: The Additional group of the two users: harry, Natasha is the admin group. The user: tom's login shell should be non-interactive.
Suggested Answer: See explanation below.
# useradd -G admin harry
# useradd -G admin natasha
# useradd -s /sbin/nologin tom
# id harry;id Natasha (Show additional group)
# cat /etc/passwd
(Show the login shell)
OR –
# system-config-users
SIMULATION -
Configure your Host Name, IP Address, Gateway and DNS.
Host name: station.domain40.example.com
/etc/sysconfig/network
hostname=abc.com
hostname abc.com
IP Address:172.24.40.40/24 -
Gateway172.24.40.1 -
DNS:172.24.40.1 -
Suggested Answer: See explanation below.
# cd /etc/syscofig/network-scripts/
# ls
# vim ifcfg-eth0 (Configure IP Address, Gateway and DNS) IPADDR=172.24.40.40
GATEWAY=172.24.40.1 –
DNS1=172.24.40.1 –
# vim /etc/sysconfig/network
(Configure Host Name)
HOSTNAME= station.domain40.example.com
OR –
Graphical Interfaces:
System->Preference->Network Connections (Configure IP Address, Gateway and DNS) Vim /etc/sysconfig/network
(Configure Host Name)
SIMULATION -
Change the logical volume capacity named vo from 190M to 300M. and the size of the floating range should set between 280 and 320. (This logical volume has been mounted in advance.)
Suggested Answer: See explanation below.
# vgdisplay
(Check the capacity of vg, if the capacity is not enough, need to create pv , vgextend , lvextend)
# lvdisplay (Check lv)
# lvextend -L +110M /dev/vg2/lv2
# resize2fs /dev/vg2/lv2
mount -a
(Verify)
——————————————————————————-
(Decrease lvm)
# umount /media
# fsck -f /dev/vg2/lv2
# resize2fs -f /dev/vg2/lv2 100M
# lvreduce -L 100M /dev/vg2/lv2
# mount -a
# lvdisplay (Verify)
OR –
# e2fsck -f /dev/vg1/lvm02
# resize2fs -f /dev/vg1/lvm02
# mount /dev/vg1/lvm01 /mnt
# lvreduce -L 1G -n /dev/vg1/lvm02
# lvdisplay (Verify)
SIMULATION -
Configure autofs to make sure after login successfully, it has the home directory autofs, which is shared as /rhome/ldapuser40 at the ip: 172.24.40.10. and it also requires that, other ldap users can use the home directory normally.
Suggested Answer: See explanation below.
# chkconfig autofs on
# cd /etc/
# vim /etc/auto.master
/rhome /etc/auto.ldap
# cp auto.misc auto.ldap
# vim auto.ladp
ldapuser40 -rw,soft,intr 172.24.40.10:/rhome/ldapuser40
* -rw,soft,intr 172.16.40.10:/rhome/&
# service autofs stop
# server autofs start
# showmount -e 172.24.40.10
# su – ladpuser40
SIMULATION -
Configure /var/tmp/fstab Permission.
Copy the file /etc/fstab to /var/tmp/fstab. Configure var/tmp/fstab permissions as the following:
Owner of the file /var/tmp/fstab is Root, belongs to group root
File /var/tmp/fstab cannot be executed by any user
User natasha can read and write /var/tmp/fstab
User harry cannot read and write /var/tmp/fstab
All other users (present and future) can read var/tmp/fstab.
Suggested Answer: See explanation below.
cp /etc/fstab /var/tmp/
/var/tmp/fstab view the owner setfacl -m u:natasha:rw- /var/tmp/fstab setfacl -m u:haryy:— /var/tmp/fstab
Use getfacl /var/tmp/fstab to view permissions
SIMULATION -
Configure the verification mode of your host account and the password as LDAP. And it can login successfully through ldapuser40. The password is set as
"password". And the certificate can be downloaded from http://ip/dir/ldap.crt. After the user logs on the user has no host directory unless you configure the autofs in the following questions.
Suggested Answer: See explanation below.
system-config-authentication
LDAP Server: ldap//instructor.example.com (In domain form, not write IP)
OR –
# yum groupinstall directory-client (1.krb5-workstation 2.pam-krb5 3.sssd)
# system-config-authentication
1.User Account Database: LDAP
2.LDAP Search Base DN: dc=example,dc=com
3.LDAP Server: ldap://instructor.example.com (In domain form, not write IP) 4.Download CA Certificate
5.Authentication Method: LDAP password
6.Apply
getent passwd ldapuser40
SIMULATION -
Create User Account.
Create the following user, group and group membership:
Adminuser group -
User natasha, using adminuser as a sub group
User Harry, also using adminuser as a sub group
User sarah, can not access the SHELL which is interactive in the system, and is not a member of adminuser, natasha harry sarah password is redhat.
ן¼
ן¼
Suggested Answer: See explanation below.
groupadd adminuser
useradd natasha -G adminuser
useradd haryy -G adminuser
useradd sarah -s /sbin/nologin
Passwd user name // to modify password or echo redhat | passwd –stdin user name id natasha // to view user group.
SIMULATION -
Configure a HTTP server, which can be accessed through
http://station.domain40.example.com.
Please download the released page from http://ip/dir/example.html.
SIMULATION -
Adjust the size of the Logical Volume.
Adjust the size of the vo Logical Volume, its file system size should be 290M. Make sure that the content of this system is complete.
Note: the partition size is rarely accurate to the same size as required, so in the range 270M to 320M is acceptable.
Suggested Answer: See explanation below.
Addition –
df -hT
lvextend -L +100M /dev/vg0/vo
Lvscan –
xfs_growfs /home/ //home is the mounted directory of the LVM, this step just need to do in the practice environment, and test EXT4 does not need this step. resize2fs /dev/vg0/vo// use this command to update in examination. df -hT
OR –
Subtraction –
e2fsck -f/dev/vg0/vo
umount /home
resize2fs /dev/vg0/vo // the final required partition capacity is 100M lvreduce -l 100M /dev/vg0/vo mount /dev/vg0/vo/home df -hT
SIMULATION -
Install a FTP server, and request to anonymous download from /var/ftp/pub catalog. (it needs you to configure yum direct to the already existing file server.)
Suggested Answer: See explanation below.
# cd /etc/yum.repos.d
# vim local.repo
[local]
name=local.repo
baseurl=file:///mnt
enabled=1
gpgcheck=0
# yum makecache
# yum install -y vsftpd
# service vsftpd restart
# chkconfig vsftpd on
# chkconfig –list vsftpd
# vim /etc/vsftpd/vsftpd.conf
anonymous_enable=YES
SIMULATION -
Configure a default software repository for your system.
One YUM has already provided to configure your system on http://server.domain11.example.com/pub/ x86_64/Server, and can be used normally.
Suggested Answer: See explanation below.
Yum-config-manager –add-repo=http://content.example.com/rhel7.0/x86-64/dvdג€ is to generate a file vim content.example.com_rhel7.0_x86_64_dvd.repo, Add a line gpgcheck=0
Yumcleanall –
Yumrepolist –
Almost 4305 packages are right, Wrong Yum Configuration will lead to some following questions cannot be worked out.
SIMULATION -
Download ftp://192.168.0.254/pub/boot.iso to /root, and mounted automatically under /media/cdrom and which take effect automatically at boot-start.
Suggested Answer: See explanation below.
# cd /root; wget ftp://192.168.0.254/pub/boot.iso
# mkdir -p /media/cdrom
# vim /etc/fstab
/root/boot.iso /media/cdrom iso9660 defaults,loop 0 0
# mount -a
mount [-t vfstype] [-o options] device dir
SIMULATION -
Create a volume group, and set 8M as a extends. Divided a volume group containing 50 extends on volume group lv (lvshare), make it as ext4 file system, and mounted automatically under /mnt/data. And the size of the floating range should set between 380M and 400M.
SIMULATION -
Create a volume group, and set 16M as a extends. And divided a volume group containing 50 extends on volume group lv, make it as ext4 file system, and mounted automatically under /mnt/data.
Suggested Answer: See explanation below.
# pvcreate /dev/sda7 /dev/sda8
# vgcreate -s 16M vg1 /dev/sda7 /dev/sda8
# lvcreate -l 50 -n lvm02
# mkfs.ext4 /dev/vg1/lvm02
# blkid /dev/vg1/lv1
# vim /etc/fstab
# mkdir -p /mnt/data
UUID=xxxxxxxx /mnt/data ext4 defaults 0 0
# vim /etc/fstab
# mount -a
# mount
(Verify)
SIMULATION -
Create a 512M partition, make it as ext4 file system, mounted automatically under /mnt/data and which take effect automatically at boot-start.
Suggested Answer: See explanation below.
# fdisk /dev/vda
n
+512M
w
# partprobe /dev/vda
# mkfs -t ext4 /dev/vda5
# mkdir -p /data
# vim /etc/fstab
/dev/vda5 /data ext4 defaults 0 0
# mount -a
SIMULATION -
Install the Kernel Upgrade.
Install suitable kernel update from:
http://server.domain11.example.com/pub/updates.
Following requirements must be met:
Updated kernel used as the default kernel of system start-up.
The original kernel is still valid and can be guided when system starts up.
Suggested Answer: See explanation below.
Using the browser open the URL in the question, download kernel file to root or home directory. uname ג€”r// check the current kernel version rpm ג€”ivh kernel-*.rpm vi /boot/grub.conf// check
Some questions are: Install and upgrade the kernel as required. To ensure that grub2 is the default item for startup.
Yum repo : http://content.example.com/rhel7.0/x86-64/errata
OR –
uname -r // check kernel
Yum-config-manager –add-repo=ג€http://content.example.com/rhel7.0/x86-64/ errataג€
Yum clean all –
Yum list kernel// install directly
Yum -y install kernel// stuck with it, do not pipe! Please do not pipe!
Default enable new kernel grub2-editenv list// check
Modify grub2-set-default ג€kernel full nameג€
Grub2-mkconfig ג€”o/boot/grub2/grub.cfg// Refresh
SIMULATION -
Configure iptables, there are two domains in the network, the address of local domain is 172.24.0.0/16 other domain is 172.25.0.0/16, now refuse domain
172.25.0.0/16 to access the server.
Suggested Answer: See explanation below.
iptables -F
service iptables save
iptables -A INPUT -s 172.25.0.0/16 -j REJECT
service iptables save
service iptables restart
SIMULATION -
Upgrade the kernel, start the new kernel by default. kernel download from this address: ftp://server1.domain10.example.com/pub/update/new.kernel
Suggested Answer: See explanation below.
Download the new kernel file and then install it.
[root@desktop8 Desktop]# ls
kernel-2.6.32-71.7.1.el6.x86_64.rpm
kernel-firmware-2.6.32-71.7.1.el6.noarch.rpm
[root@desktop8 Desktop]# rpm -ivh kernel-*
Preparing… ###########################################
[100%]
1:kernel-firmware
########################################### [ 50%]
2:kernel
########################################### [100%]
Verify the grub.conf file, whether use the new kernel as the default boot. [root@desktop8 Desktop]# cat /boot/grub/grub.conf default=0 title Red Hat Enterprise Linux Server (2.6.32-71.7.1.el6.x86_64) root (hd0,0) kernel /vmlinuz-2.6.32-71.7.1.el6.x86_64 ro root=/dev/mapper/vol0-root rd_LVM_LV=vol0/root rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet initrd /initramfs-2.6.32-71.7.1.el6.x86_64.img
SIMULATION -
Create a 2G swap partition which take effect automatically at boot-start, and it should not affect the original swap partition.
Suggested Answer: See explanation below.
# fdisk /dev/sda
p
(check Partition table)
n
(create new partition: press e to create extended partition, press p to create the main partition, and the extended partition is further divided into logical partitions)
Enter –
+2G t
8 I
82
W –
partx -a /dev/sda
partprobe
mkswap /dev/sda8
Copy UUID –
swapon -a
vim /etc/fstab
UUID=XXXXX swap swap defaults 0 0
(swapon -s)
SIMULATION -
Configure your Host Name, IP Address, Gateway and DNS.
Host name: dtop5.dn.ws.com -
IP Address: 172.28.10.5/4 -
Gateway: 172.28.10.1 -
DNS: 172.28.10.1 -
Suggested Answer: See explanation below.
1. Configure Host Name
vim /etc/sysconfig/network NETWORKING=yes HOSTNAME=dtop5.dn.ws.com GATEWAY=172.28.10.1
2. Configure IP Address, Gateway and DNS
Configure the network by Network Manager:
<img src=”https://www.examtopics.com/assets/media/exam-media/04216/0002400001.jpg” alt=”Reference Image” />
Note: Please remember to choose two options:
Connect automatically –
Available to all users –
Click “Apply”, save and exit, and restart your network services:
# Service network restart
3. Validate these profiles:
a) Check gateway: # vim / etc / sysconfig / network
NETWORKING=yes –
HOSTNAME=dtop5.dn.ws.com –
GATEWAY=172.28.10.1 –
b) Check Host Name: # vim /etc/hosts
<img src=”https://www.examtopics.com/assets/media/exam-media/04216/0002500001.png” alt=”Reference Image” />
c) Check DNS: # vim /etc/resolv.conf
# Generated by NetworkManager
Search dn.ws.com –
Nameserver 172.28.10.1 –
d) Check Gateway: # vim /etc/sysconfig/network-scripts/ifcfg-eth0
<img src=”https://www.examtopics.com/assets/media/exam-media/04216/0002600001.png” alt=”Reference Image” />
SIMULATION -
Create a logical volume -
Create a new logical volume as required:
Name the logical volume as database, belongs to datastore of the volume group, size is 50 PE.
Expansion size of each volume in volume group datastore is 16MB.
Use ext3 to format this new logical volume, this logical volume should automatically mount to /mnt/database
Suggested Answer: See explanation below.
fdisk -cu /dev/vda// Create a 1G partition, modified when needed partx ג€”a /dev/vda pvcreate /dev/vdax vgcreate datastore /dev/vdax ג€”s 16M lvcreateג€” l 50 ג€”n database datastore mkfs.ext3 /dev/datastore/database mkdir /mnt/database mount /dev/datastore/database /mnt/database/ df ג€”Th vi /etc/fstab
/dev/datastore /database /mnt/database/ ext3 defaults 0 0 mount ג€”a
Restart and check all the questions requirements.
SIMULATION -
Create a backup -
Create a backup file named /root/backup.tar.bz2, contains the content of /usr/local, tar must use bzip2 to compress.
Suggested Answer: See explanation below.
cd /usr/local
tar ג€”jcvf /root/backup.tar.bz2
mkdir /test
tar ג€”jxvf /root/backup.tar.bz2 ג€”C /test// Decompression to check the content is the same as the /usr/loca after
If the questions require to use gzip to compress. change ג€”j to ג€”z.
SIMULATION -
Add a swap partition.
Adding an extra 500M swap partition to your system, this swap partition should mount automatically when the system starts up. Don't remove and modify the existing swap partitions on your system.
Suggested Answer: See explanation below.
fdisk -cu /dev/vda// in the way of expanding the partition, don’t make main partition partx ג€”a /dev/vda mkswap /dev/vdax swapon /dev/vdax swapon ג€”s vi /etc/fstab
/dev/vdaxswapswapdefaults0 0
mount -a
SIMULATION -
Search a String -
Find out all the columns that contains the string seismic within /usr/share/dict/words, then copy all these columns to /root/lines.tx in original order, there is no blank line, all columns must be the accurate copy of the original columns.
SIMULATION -
Configure autofs.
Configure the autofs automatically mount to the home directory of LDAP, as required: server.domain11.example.com use NFS to share the home to your system. This file system contains a pre configured home directory of user ldapuserX.
Home directory of ldapuserX is:
server.domain11.example.com /home/guests/ldapuser
Home directory of ldapuserX should automatically mount to the ldapuserX of the local /home/guests Home directory's write permissions must be available for users ldapuser1's password is password
Suggested Answer: See explanation below.
yum install -y autofs
mkdir /home/rehome
/etc/auto.master
/home/rehome/etc/auto.ldap
Keep then exit –
cp /etc/auto.misc /etc/auto.ldap
/etc/auto.ldap
ldapuserX -fstype=nfs,rw server.domain11.example.com:/home/guests/
Keep then exit –
systemctl start autofs
systemctl enable autofs
su – ldapuserX// test
If the above solutions cannot create files or the command prompt is -bash-4.2$, it maybe exist multi-level directory, this needs to change the server.domain11.example.com:/home/guests/ to server.domain11.example.com:/home/guests/ldapuserX. What is multi-level directory? It means there is a directory of ldapuserX under the /home/guests/ldapuserX in the questions. This directory is the real directory.
SIMULATION -
There are two different networks 192.168.0.0/24 and 192.168.1.0/24. Where 192.168.0.254 and
192.168.1.254 IP Address are assigned on Server. Verify your network settings by pinging 192.168.1.0/24 Network's Host.
SIMULATION -
There are two different networks, 192.168.0.0/24 and 192.168.1.0/24. Your System is in 192.168.0.0/24 Network. One RHEL6 Installed System is going to use as a Router. All required configuration is already done on Linux Server. Where 192.168.0.254 and 192.168.1.254 IP Address are assigned on that Server. How will make successfully ping to 192.168.1.0/24 Network's Host?
Suggested Answer: See explanation below.
vi /etc/sysconfig/network GATEWAY=192.168.0.254
OR –
vi /etc/sysconf/network-scripts/ifcfg-eth0 DEVICE=eth0
BOOTPROTO=static –
ONBOOT=yes –
IPADDR=192.168.0.?
NETMASK=255.255.255.0 –
GATEWAY=192.168.0.254 –
service network restart
Gateway defines the way to exit the packets. According to question System working as a router for two networks have IP Address 192.168.0.254 and
192.168.1.254.
SIMULATION -
Make a swap partition having 100MB. Make Automatically Usable at System Boot Time.
Suggested Answer: See explanation below.
Use fdisk /dev/hda ->To create new partition.
Type n-> For New partition –
It will ask for Logical or Primary Partitions. Press l for logical.
It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.
Type the Size: +100M ->You can Specify either Last cylinder of Size here.
Press P to verify the partitions lists and remember the partitions name. Default System ID is 83 that means Linux Native.
Type t to change the System ID of partition.
Type Partition Number –
Type 82 that means Linux Swap.
Press w to write on partitions table.
Either Reboot or use partprobe command.
mkswap /dev/hda? ->To create Swap File system on partition.
swapon /dev/hda? ->To enable the Swap space from partition.
free -m ->Verify Either Swap is enabled or not.
vi /etc/fstab/dev/hda? swap swap defaults 0 0
Reboot the System and verify that swap is automatically enabled or not.
SIMULATION -
Create a Shared Directory.
Create a shared directory /home/admins, make it has the following characteristics:
/home/admins belongs to group adminuser
This directory can be read and written by members of group adminuser Any files created in /home/ admin, group automatically set as adminuser.
SIMULATION -
You are new System Administrator and from now you are going to handle the system and your main task is Network monitoring, Backup and Restore. But you don't know the root password. Change the root password to redhat and login in default Runlevel.
Suggested Answer: See explanation below.
When you Boot the System, it starts on default Runlevel specified in /etc/inittab:
Id:?:initdefault:
When System Successfully boot, it will ask for username and password. But you don’t know the root’s password. To change the root password you need to boot the system into single user mode. You can pass the kernel arguments from the boot loader.
1. Restart the System.
2. You will get the boot loader GRUB screen.
3. Press a and type 1 or s for single mode ro root=LABEL=/ rhgb queit s
4. System will boot on Single User mode.
5. Use passwd command to change.
6. Press ctrl+d
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