Which of the following sections exists in a systemd timer unit?

The correct answer is B. [Timer]. [Timer] is a real section in systemd unit files - every .timer unit must include it to define scheduling directives like OnCalendar=, OnBootSec=, or OnUnitActiveSec=. The other options are fabrications: [Events], [cron], [Schedule], and [Trigger] are not valid systemd unit…

Essential System Services

Question

Which of the following sections exists in a systemd timer unit?

Options

A[Events]
B[Timer]
C[cron]
D[Schedule]
E[Trigger]

How the community answered

(45 responses)

A
7% (3)
B
73% (33)
C
2% (1)
D
4% (2)
E
13% (6)

Explanation

[Timer] is a real section in systemd unit files - every .timer unit must include it to define scheduling directives like OnCalendar=, OnBootSec=, or OnUnitActiveSec=. The other options are fabrications: [Events], [cron], [Schedule], and [Trigger] are not valid systemd unit sections - systemd has no concept of these names, and cron is an entirely separate scheduling system.

Memory tip: Systemd unit sections are always named after the unit type itself - a .service file has [Service], a .socket file has [Socket], and a .timer file has [Timer]. If you remember that pattern, you'll never second-guess it on the exam.

Topics

#systemd#timer units#unit files#scheduling

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