Q1: 1. What is the default package manager in Ubuntu Server?

• A) Yum
• B) Apt
• C) Dnf
• D) Zypper

Q2: 2. Which command is used to update the package list in Ubuntu Server?

• A) sudo apt-get update
• B) sudo apt-get upgrade
• C) sudo apt-get install
• D) sudo apt-get remove

Q3: 3. Which directory stores configuration files for various services in Ubuntu Server?

• A) /etc
• B) /var
• C) /usr
• D) /opt

Q4: 4. What command is used to restart the Apache web server in Ubuntu Server?

• A) systemctl restart apache2
• B) service apache2 restart
• C) restart apache2
• D) apache2ctl restart

Q5: 5. Which file contains the network configuration in Ubuntu Server?

• A) /etc/network/interfaces
• B) /etc/resolv.conf
• C) /etc/hosts
• D) /etc/sysconfig/network

Q6: 6. What is the default shell in Ubuntu Server?

• A) Bash
• B) Zsh
• C) Ksh
• D) Tcsh

Q7: 7. Which command is used to add a new user in Ubuntu Server?

• A) adduser
• B) useradd
• C) createuser
• D) newuser

Q8: 8. Which command is used to change file permissions in Ubuntu Server?

• A) chmod
• B) chown
• C) chgrp
• D) perm

Q9: 9. Which service is used for remote access in Ubuntu Server?

• A) SSH
• B) Telnet
• C) FTP
• D) RDP

Q10: 10. Which command is used to check disk usage in Ubuntu Server?

• A) df
• B) du
• C) disk
• D) space

Q11: 11. How can you check the current Ubuntu Server version?

• A) version
• B) uname -a
• C) ubuntu-version
• D) cat /etc/os-release

Q12: 12. Which command is used to start a service in Ubuntu Server?

• A) systemctl start
• B) service start
• C) start-service
• D) initctl start

Q13: 13. What is the default text editor in Ubuntu Server?

• A) Nano
• B) Vim
• C) Emacs
• D) Gedit

Q14: 14. Which command is used to display the listening network ports in Ubuntu Server?

• A) netstat -l
• B) ifconfig
• C) ip addr
• D) ss -l

Q15: 15. How can you check the CPU usage in Ubuntu Server?

• A) top
• B) ps
• C) htop
• D) cpu

Q16: 16. Which command is used to update Ubuntu Server to the latest version?

• A) sudo apt-get dist-upgrade
• B) sudo apt-get update
• C) sudo apt-get upgrade
• D) sudo apt-get full-upgrade

Q17: 17. How can you schedule a task to run at a specific time in Ubuntu Server?

• A) cron
• B) task
• C) schedule
• D) at

Q18: 18. Which command is used to display system information in Ubuntu Server?

• A) uname -a
• B) sysinfo
• C) info
• D) system

Q19: 19. What is the default firewall management tool in Ubuntu Server?

• A) UFW
• B) IPTABLES
• C) Firewalld
• D) PF

Q20: 20. Which command is used to check the status of a service in Ubuntu Server?

• A) systemctl status
• B) service status
• C) status-service
• D) initctl status

Q21: 21. How can you install a package from a specific repository in Ubuntu Server?

• A) apt-get install -r
• B) apt-get install -s
• C) apt-get install -t
• D) apt-get install -p

Q22: 22. Which command is used to create a symbolic link in Ubuntu Server?

• A) ln -s
• B) symlink
• C) link -s
• D) sl

Q23: 23. How can you check the system uptime in Ubuntu Server?

• A) uptime
• B) top
• C) ps
• D) cat /proc/uptime

Q24: 24. Which command is used to list running processes in Ubuntu Server?

• A) ps
• B) top
• C) list
• D) process

Q25: 25. How can you check the memory usage in Ubuntu Server?

• A) free
• B) mem
• C) top
• D) ps