Red Hat Certified Sys Admin Ex200 Practice Test - Set 1

Test your knowledge with this Red Hat Certified Sys Admin Ex200 mock exam. Get real-world IT questions and prepare for certification success.

EX200: Red Hat Certified System Administrator (RHCSA) - Exam Information

Exam Information

Exam Code

Red Hat Certified Sys Admin Ex200

Exam Title

EX200: Red Hat Certified System Administrator (RHCSA)

Vendor

Red Hat

Difficulty

Intermediate

Duration

2.5 Hours

Question Format

Multiple Choice

Last Updated

February 23, 2025

The EX200 exam tests the skills and knowledge required to be a successful Red Hat Certified System Administrator (RHCSA).

Practice Test

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1. Which command is used to create a new user in Linux?

adduser

usercreate

newuser

createuser

2. Which file stores user account information in Linux?

/etc/passwd

/etc/shadow

/etc/group

/etc/users

3. Which command is used to change file ownership in Linux?

chown

chmod

chgrp

usermod

4. What is the default firewall service in RHEL 8?

firewalld

iptables

ufw

nftables

5. Which command displays the disk usage of a directory in Linux?

lsblk

fdisk

6. Which file controls sudo privileges in Linux?

/etc/sudoers

/etc/privileges

/etc/sudoconfig

/etc/permissions

7. Which command is used to list open network connections?

netstat

top

ifconfig

8. Which command is used to extract a tar.gz file?

tar -xzf file.tar.gz

tar -czf file.tar.gz

unzip file.tar.gz

extract file.tar.gz

9. What does the "ls -l" command display?

A detailed list of files

Only hidden files

Only directories

File sizes only

10. Which command is used to check the current runlevel?

runlevel

uptime

ps -aux

systemctl status

11. Which command is used to reboot a Linux system immediately?

reboot

shutdown -r now

halt

init 6

12. Which command is used to display the current working directory?

pwd

cwd

dir

13. Which command shows the last system boot time?

who -b

uptime

last

dmesg | grep boot

14. Which command is used to search for a specific string in a file?

grep

find

locate

15. Which command is used to change the hostname in Linux?

hostnamectl set-hostname

hostname

sysctl hostname

hostconfig

16. Which command is used to remove a directory in Linux?

rmdir

rm -rf

del

remove

17. Which command displays memory usage in Linux?

free

memstat

top

18. Which command lists all running processes?

ps aux

top

jobs

proc

19. Which file stores system logs in Linux?

/var/log/syslog

/etc/log

/log/system

/log/messages

20. Which command is used to schedule a cron job?

crontab -e

cron

taskadd

jobs -s

21. Which command is used to check disk space usage?

df -h

du -sh

lsblk

fdisk -l

22. Which command is used to kill a running process by name?

pkill

kill

terminate

stop

23. Which command is used to display active network interfaces?

ip a

ifconfig

netstat -i

route -n

24. Which command updates package repositories in RHEL?

dnf update

yum update

apt-get update

pkg update

25. Which command changes file permissions in Linux?

chmod

chown

chgrp

setperm

26. Create a new user named "developer" with UID 1500 and home directory /home/dev

useradd -u 1500 -d /home/dev developer

adduser -u 1500 -h /home/dev developer

usermod -u 1500 -d /home/dev developer

newuser developer -u 1500 -h /home/dev

27. Set the password for user "developer" to "RedHat123"

echo "RedHat123" | passwd --stdin developer

passwd developer <<< "RedHat123"

chpasswd developer:RedHat123

setpass developer RedHat123

28. Create a directory /data/share with permissions 775, owned by group "developers"

mkdir -p /data/share && chmod 775 /data/share && chgrp developers /data/share

install -d -m775 -g developers /data/share

newdir /data/share -m775 -g developers

mkfolder /data/share -perm 775 -group developers

29. Mount /dev/sdb1 persistently to /mnt/data using XFS filesystem

Add "UUID=$(blkid -s UUID -o value /dev/sdb1) /mnt/data xfs defaults 0 0" to /etc/fstab then mount -a

mount /dev/sdb1 /mnt/data -t xfs -o defaults && echo "/dev/sdb1 /mnt/data xfs defaults 0 0" >> /etc/fstab

mkfs.xfs /dev/sdb1 && mount /dev/sdb1 /mnt/data

format /dev/sdb1 xfs && automount /mnt/data

30. Create a cron job that runs /usr/local/bin/backup.sh daily at 2:30 AM

crontab -e then add "30 2 * * * /usr/local/bin/backup.sh"

echo "30 2 * * * /usr/local/bin/backup.sh" >> /etc/crontab

addcron "30 2 * * * /usr/local/bin/backup.sh"

schedule -t daily -h 2 -m 30 /usr/local/bin/backup.sh

31. Configure the system to automatically mount /dev/cdrom at /media/cdrom

Add "/dev/cdrom /media/cdrom iso9660 defaults,ro,user,noauto 0 0" to /etc/fstab

mount /dev/cdrom /media/cdrom && chmod 755 /media/cdrom

automount --device /dev/cdrom --target /media/cdrom

echo "cd /dev/cdrom /media/cdrom" >> /etc/autofs.conf

32. Find all files in /var/log modified in the last 7 days and save the list to /root/logfiles.txt

find /var/log -mtime -7 > /root/logfiles.txt

ls -l /var/log/* | grep "7 days" > /root/logfiles.txt

locate /var/log -d 7 > /root/logfiles.txt

search /var/log -modified +7d -out /root/logfiles.txt

33. Configure the system to use 192.168.1.100 as its DNS server

Add "nameserver 192.168.1.100" to /etc/resolv.conf

echo "DNS=192.168.1.100" >> /etc/sysconfig/network

netconfig set dns 192.168.1.100

resolvectl add 192.168.1.100

34. Create a symbolic link /usr/bin/py3 that points to /usr/bin/python3

ln -s /usr/bin/python3 /usr/bin/py3

symlink /usr/bin/python3 /usr/bin/py3

link -s /usr/bin/python3 /usr/bin/py3

mklink /usr/bin/py3 /usr/bin/python3

35. Set the default runlevel to multi-user mode (no GUI)

systemctl set-default multi-user.target

init 3

telinit 3

change-runlevel 3

36. Configure the system to synchronize time with time.server.example.com

Add "server time.server.example.com" to /etc/chrony.conf and restart chronyd

ntpdate time.server.example.com

timedatectl set-ntp time.server.example.com

echo "time.server.example.com" > /etc/ntp.conf

37. Create a 1GB swap file at /swapfile and activate it

dd if=/dev/zero of=/swapfile bs=1M count=1024 && mkswap /swapfile && swapon /swapfile

fallocate -l 1G /swapfile && swapon /swapfile

mkfile 1G /swapfile && swapctl -a /swapfile

createswap /swapfile 1G

38. Configure the system to automatically resize /home to use all available space on boot

Add "x-systemd.growfs" to /etc/fstab for /home entry

echo "growpart /home" >> /etc/rc.local

install growfsd service for /home

autogrowfs enable /home

39. Find all files owned by user "olduser" and change ownership to "newuser"

find / -user olduser -exec chown newuser {} \;

chown -R newuser:newuser /

for file in $(ls -l | grep olduser); do chown newuser $file; done

find / -owner olduser | xargs chown newuser

40. Configure the system to allow SSH access only from 192.168.1.0/24

Add "AllowUsers *@192.168.1.*" to /etc/ssh/sshd_config and restart sshd

iptables -A INPUT -p tcp --dport 22 -s 192.168.1.0/24 -j ACCEPT

firewall-cmd --add-rich-rule="rule family="ipv4" source address="192.168.1.0/24" service name="ssh" accept"

echo "192.168.1.0/24" > /etc/ssh/allowed_hosts

41. Create a compressed archive of /etc directory named etc_backup.tar.gz

tar -czf etc_backup.tar.gz /etc

zip -r etc_backup.tar.gz /etc

gzip /etc > etc_backup.tar.gz

archive create etc_backup.tar.gz /etc

42. Configure the system to automatically start Apache web server at boot

systemctl enable httpd

chkconfig httpd on

service httpd enable

initctl enable httpd

43. Find all files larger than 100MB in /var and save the list to /root/largefiles.txt

find /var -size +100M > /root/largefiles.txt

du -h /var | grep "100M" > /root/largefiles.txt

ls -lh /var | awk "{if ($5 > 100M) print}" > /root/largefiles.txt

search /var -size +100MB -out /root/largefiles.txt

The Red Hat Certified Sys Admin Ex200 certification is a globally recognized credential for IT professionals. This practice test helps you prepare by covering key topics like hardware, networking, troubleshooting, and security.

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