RHCSA EX200 EXAM Objectives Preparation Questions - Free Hands-on Playlist on YouTube - Haruna Adoga

RHCSA-Practice.txt

Free YouTube RHCSA Hands-on Exam Practice Playlist: https://www.youtube.com/playlist?list=PLiI_-JOspy6FuSPXSipE0xE4oC2XXYyuI

1) RHCSA EX200 EXAM Objective: Understand and Use Essential Tools
Task 1: Text Search & Archive - Man pages
	1.1	Find the string "Listen" in /etc/httpd/conf/httpd.conf and save the output to /root/web.txt
	2	  1.2   Create a gzip-compressed tar archive of /etc named etc_vault.tar.gz in /vaults directory.
	⁃	use man pages for gzip option

Task 2: File Links - Shortcuts
2.1 In /shorts directory:
	◦	Create  a file file_a
	◦	Create soft link file_b pointing to file_a
	◦	Create hard link file_c pointing to file_a
	◦	Verify all links work

Task 3: Advanced File Operations - Find
	5	3.1.  Find files in /usr that are greater than 3MB but < 10MB and copy them to /bigfiles directory.
	6	3.2	Find files in /etc modified more than 120 days ago and copy them to /var/tmp/twenty/ 
	7	3.3 Find all files owned by user hadoga and copy them to /root/h-files
	8	3.4  Find a file named “httpd.conf” and save the absolute paths to /root/httpd-paths.txt 

Task 4: Remote Access & File Permissions
	8	4.1 From node1, SSH into node2 as user hadoga and:
	◦	4.2 Copy the contents of /etc/fstab to /var/tmp
	◦	4.3 Set the file ownership to root
	◦	4.4 Ensure no execute permissions for anyone




2) RHCSA EXAM OBJECTIVE: Create Simple Shell Scripts
Task 1: Size-Based File Search
Create a shell script that:
	1	Finds files in /usr sized >30KB but <50KB
	2	Outputs results to /root/sized_files.txt


Task 2: Conditional Script (career.sh) with argument
Create /root/career.sh that:
	1	Outputs "Yes, I’m a Systems Engineer." when run with ./career.sh me
	2	Outputs "Okay, they do cloud engineering." when run with ./career.sh they
	3	Outputs  "Usage: ./career.sh me|they" for invalid/empty arguments

Task 3: File processing, input/output Users and Groups Script
Write shell scripts on node1 that create users and groups according to the following parameters. 
maryam:2030:hpc_admin,hpc_managers
adam:2040:sysadmin,
jacob:2050:hpc_admin

Write a shell script that sets the passwords of the users maryam, adam and jacob to Password@1


3) RHCSA EX200 Part3 - Operate Running Systems
Task 1: Reset Root Password
	•	Break into node2 and set a new root password to hoppy.
Task 2: Tuning Profile Configuration and SELINUX
	•	Check the current recommended tuning profile.
	•	Put SELinux in permissive mode on node2.
	•	On node1 ensure network service is enabled and starts on boot.
Task 4: Persistent Journaling
	•	Configure persistent journaling on both servers to retain logs across reboots.
Task 5: Process process scheduling
	•	Start a stress-ng process on node1 with a niceness value of 19.
	•	Adjust the niceness value of the running stress-ng process to 10.
	•	Terminate the stress-ng process.
Task 6: File Permissions & File ACLs
	•	Copy /etc/fstab to /var/tmp.
	•	Set the file owner to root
	•	Ensure /var/tmp/fstab is not executable by anyone.
	•	Configure file ACLs on the copied file to:
	◦	User adam: read & write.
	◦	User maryam: no access.
	◦	All other users: read-only.
Task 7: Secure File Transfer
	•	On node1, create a file node1-file.ext and securely copy (scp) it to the home dir of user hadoga on node2.



4) RHCSA Objective - Configure Local Storage
Task 1: Set Up LVM on node1
Create a logical volume named devops_lv with 32 extents  using the /dev/vdb disk.

This should be created from a volume group named devops_vg with 20MB physical extents.
Format the logical volume as an ext4 filesystem and mount it persistently at /mnt/devops_lv.

Check your work.

Task 2: Create and Mount Swap volume persistently
From /dev/vdb, create a 800MB swap partition and configure it to mount persistently.

All your changes must persist after a reboot.


5) Create & Configure File Systems
Task 1: Resize devlops_lv and Configure Swap volume
On node1, resize the existing cloud_lv logical volume to 250MB (a size between 225–270MB is acceptable), while resizing its filesystem accordingly.


Task 2: Configure Autofs for remote user home directories
Create a user named bobby with UID of  , with no home directory, and a base directory of /mnt/netdir and a password of hoppy.
Configure NFS autofs such that the home directory of user bob is automatically mounted at 
/mnt/netdir/bobby on login. 
Note that bobby’s account has been configured on the NFS server exporting their home directory at repo.rhcsa.home:/home/bobby.

Login as user bobby to verify your config.



6) Deploy, Configure, and Maintain Systems
Tasks:
	1	Cron Job Configuration
	◦	Create a cron job for user hadoga that runs logger "RHCSA Playlist Now Available” every 2 minutes.
	◦	Use at to write "This task was easy!" to /at-files/at.txt in 2 minutes.
	2	Local YUM Repository Configuration
	◦	Configure BaseOS (URL: http://repo.rhcsa.home/repo/BaseOS/) and AppStream (URL: http://repo.rhcsa.home/repo/AppStream/) repos on node1
	1	NTP Chrony Configuration
	◦	Set up chrony time service to sync time with server.rhel.com.

	2	GRUB Bootloader Modification
	◦	Set GRUB_TIMEOUT=10, 
	◦	GRUB_TIMEOUT_STYLE=hidden, and add quiet to GRUB_CMDLINE_LINUX.
	◦	Apply your changes to the grub config file.



7) RHCSA - Manage Basic Networking
Tasks on node1:
	1	 Enable Network Services
	◦	Ensure network services starts at boot.
	2	Firewall Rules
	◦	Allow access SSH and HTTP services using firewall-cmd.
	3	Static IP Configuration
	◦	Assign IP 172.16.1.10/24, gateway 172.16.1.1, DNS 172.16.1.1, 
	◦	hostname node5.rhcsa.
	◦	Set DNS search domain to rhel.server.com.



8) RHCSA Objective: Manage Users and Groups
Tasks:
	1	User/Group Creation
	◦	Create a group named sharegroup and the following users:
	▪	haruna (with no login shell, not a member of sharegroup), 
	▪	umar (member of sharegroup)
	▪	adoga (with UID 4444 member of sharegroup).
	▪	All users should have a password: persward.
	▪	Change the password of user adoga to perfect
	2	User Password Policies
	◦	Enforce password policy to have a minimum length of 8 chars.
	◦	Set the max password age to 30 days.

	3	Delete Users and Groups
	◦	Remove the user umar from sharegroup
	◦	Delete the sharegroup 
	◦	Delete user haruna with their home directory

9) RHCSA Objective: Manage security
Tasks:
	1	Configure Key-based Authentication as root & Allow SSH Root Access
	◦	Generate SSH key on node1, and setup key-based authentication for the root user.
	◦	Enable SSH root login and test your configuration.
	◦	
	2	HTTPD Server Troubleshooting SELINUX
	◦	The web server on node1 (192.168.70.10) is listening on port 85, ensure that the website is reachable via that port.
	◦	Fix SELinux context for /var/www/html, if needed. 
	◦	Test using curl http://server-ip/ or use a web browser 

10) RHCSA - Manage Containers
Tasks:
	1	Container Image Creation
	◦	As user haruna on node2 (192.168.70.12), build a container image named web_image using the container file located at http://repo.rhcsa.home/containers/Containerfile.
	◦	
	2	Systemd Rootless Container Service
	◦	Deploy haruna_web container with the following:
	▪	Map host port 8000 → container port 80.
	▪	Map the host directory /opt/user_files to container directory /opt/userfiles. Files should be accessible.
	▪	Configure the container as a systemd service to start on boot.
	

Watch the complete hands-on practice solutions on YouTube - Haruna Adoga