Linux systemd & Services (Linux+) Quiz

1. Which command enables a service to start automatically at boot?

Systemctl start service-name

Systemctl enable service-name

Systemctl reload service-name

Systemctl mask service-name

2. What is a systemd unit file?

A configuration file defining how systemd manages a resource

A binary executable for system processes

A log file recording service errors

A kernel parameter file

3. Which directory typically contains user-created systemd unit files?

/etc/systemd/system/

/lib/systemd/system/

/usr/lib/systemd/system/

/var/systemd/system/

4. What does the 'mask' command do to a service?

Temporarily pauses the service

Prevents the service from being started manually or automatically

Hides the service from status output

Encrypts the service configuration

5. How do you view the status of a specific service in systemd?

Systemctl status service-name

Systemctl list service-name

Systemctl check service-name

Systemctl show-status service-name

6. What is a systemd target?

A group of units that define a system state or runlevel

A temporary cache for service data

A debugging tool for kernel modules

A network configuration setting

7. Which command displays all available systemd units?

Systemctl list-units --all

Systemctl show-all

Systemctl get-units

Systemctl enumerate

8. What does systemd-analyze do?

Analyzes system performance and boot time

Manages user accounts

Configures network interfaces

Encrypts disk partitions

9. How do you reload systemd after modifying a unit file?

Systemctl daemon-reload

Systemctl reload-daemon

Systemctl refresh-units

Systemctl update-config

10. What is the primary purpose of systemd in modern Linux distributions?

Initialize the system and manage services

Compile kernel modules

Manage file system permissions only

Handle network packet routing

11. What is the [Unit] section in a systemd service file used for?

Defining dependencies and metadata about the service

Specifying the executable path

Setting resource limits

Configuring logging levels

12. What does the 'Type=forking' option specify in a service unit file?

The service forks into background processes

The service runs in the foreground only

The service creates child processes for each connection

The service uses network sockets exclusively

13. What is the [Service] section in a unit file responsible for?

Defining how the service should execute and behave

Setting system-wide timeout values

Managing firewall rules

Configuring SSH access

14. True or False: Disabling a service prevents it from running immediately and at boot.

True

False

15. True or False: A 'static' service unit file cannot be enabled or disabled.

True

False

16. Which command shows the journal logs for a specific service?

Journalctl -u service-name

Systemctl logs service-name

Tail -f /var/log/service-name

Journalctl --service service-name

Submit

18. Which command restarts a service and reloads its configuration?

Systemctl restart service-name

Systemctl reload service-name

Systemctl reload-or-restart service-name

Systemctl refresh service-name

19. True or False: The 'ExecStart' directive can contain multiple commands in sequence.

True

False

Submit

systemd Quiz: Can You Control Every Service?

1. Which command enables a service to start automatically at boot?

2.

What first name or nickname would you like us to use?

2. What is a systemd unit file?

3. Which directory typically contains user-created systemd unit files?

4. What does the 'mask' command do to a service?

5. How do you view the status of a specific service in systemd?

6. What is a systemd target?

7. Which command displays all available systemd units?

8. What does systemd-analyze do?

9. How do you reload systemd after modifying a unit file?

10. What is the primary purpose of systemd in modern Linux distributions?

11. What is the [Unit] section in a systemd service file used for?

12. What does the 'Type=forking' option specify in a service unit file?

13. What is the [Service] section in a unit file responsible for?

14. True or False: Disabling a service prevents it from running immediately and at boot.

15. True or False: A 'static' service unit file cannot be enabled or disabled.

16. Which command shows the journal logs for a specific service?

17. The 'Before' and 'After' directives in a unit file control ____.

18. Which command restarts a service and reloads its configuration?

19. True or False: The 'ExecStart' directive can contain multiple commands in sequence.

20. The default target on most modern Linux systems is ____.