Which parameter must be passed to ifconfig to activate a previously inactive network interface? (Specify the parameter only without any command, path or additional options)

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How is the file format of /etc/crontab different from a normal crontab file? (Select TWO correct answers)

• A.A normal crontab file allows for environment variable substitution.
• B.The /etc/crontab file can specify a year field.
• C.A normal crontab file must be installed with the crontab command.
• D.The /etc/crontab file has a user field for commands.

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After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print. What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)

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Which TWO statements about crontab are true?

• A.A cron daemon must run for each existing crontab.
• B.Changing a crontab requires a reload/restart of the cron daemon.
• C.hourly is the same as "0 * * * *".
• D.The cron daemon reloads crontab files automatically when necessary.
• E.Every user may have their own crontab.

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Which of the following commands can be used to limit the amount of memory a user may use?

• A.chage
• B.usermod
• C.passwd
• D.umask
• E.ulimit

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