LFCS Question #299: Real Exam Question with Answer & Explanation

Question

An administrator needs to pause the CUPS printer Laserjet4, and wants to cancel all print jobs with a message, "hello". Which of the following commands will do this?

Options

• Acupsreject -c -r hello Laserjet4
• Bcupsreject -p -m hello Laserjet4
• Ccupsdisable -c -r hello Laserjet4
• Dcupsdisable -p -m hello Laserjet4

Explanation

To pause a CUPS printer and cancel all its jobs with a message, the cupsdisable command with the -c and -r options is used.

Common mistakes.

• A. cupsreject only prevents new jobs from being accepted by a printer; it does not pause the printer or cancel existing jobs, and the -c option is not standard for it.
• B. cupsreject only prevents new jobs; it doesn't pause or cancel existing ones, and the options -p and -m are not the correct ones for canceling jobs with cupsreject.
• D. cupsdisable correctly pauses the printer, but the options -p and -m are not the standard options for canceling all jobs and providing a reason message; -c and -r are the correct options.

Concept tested. CUPS printer management (pause, cancel jobs)

Reference. https://manpages.ubuntu.com/manpages/jammy/en/man8/cupsdisable.8.html

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