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XK0-006 Practice Question: Run a script every Monday at 3:00 PM using a…
An administrator wants to run a script every Monday at 3:00 PM using a systemd timer. Which unit file configuration is correct for the timer?
⚠ Common exam trap
CompTIA often tests the distinction between timer unit directives and service unit directives, and the trap here is that candidates mistakenly think `ExecStart=` belongs in the timer file or confuse the `OnCalendar=` syntax with cron-style or human-readable formats like 'weekly Monday 15:00'.
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
✓
OnCalendar=Mon *-*-* 15:00:00
Systemd timer units use the `OnCalendar=` directive with a calendar event format that follows `DayOfWeek Year-Month-Day Hour:Minute:Second`. The pattern `Mon *-*-* 15:00:00` specifies every Monday at 15:00:00, where the asterisks act as wildcards for any year, month, and day. This matches the requirement to run a script every Monday at 3:00 PM.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
OnCalendar=Mon *-*-* 15:00:00
Why this is correct
Correct syntax for Monday at 3 PM.
- ✗
OnCalendar=weekly Monday 15:00
Why it's wrong here
Invalid format for OnCalendar.
- ✗
ExecStart=/usr/local/bin/script.sh
Why it's wrong here
This belongs in the service unit, not timer.
- ✗
OnCalendar=daily 15:00
Why it's wrong here
Runs daily, not just Mondays.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This XK0-006 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the XK0-006 exam.