LPIC-1 Essential System Services and Networking Practice Question
Which TWO commands are commonly used to start, stop, or restart system services on a Linux system that uses systemd as its init system?
⚠ Common exam trap
It's easy for candidates to confuse `chkconfig` or `init.d` as valid systemd commands, forgetting that systemd replaced these with `systemctl` and that `service` is only a compatibility wrapper, not a native systemd tool.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
service
The `service` command is a legacy tool that works with System V init scripts, but on systems using systemd, it is often mapped to `systemctl` via compatibility wrappers. This allows `service` to start, stop, or restart services on systemd-based distributions, making it a commonly used command for these tasks.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
service
Why this is correct
service is a legacy wrapper that works with systemd on most distros.
- ✗
journalctl
Why it's wrong here
journalctl is for viewing logs, not managing services.
- ✗
chkconfig
Why it's wrong here
chkconfig is used for SysV init services, not systemd.
- ✓
systemctl
Why this is correct
systemctl is the primary tool for managing systemd services.
- ✗
init.d
Why it's wrong here
init.d is a directory containing init scripts, not a command.
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Written by Johnson Ajibi, MSc IT Security
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