Test Your Knowledge

   

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1:	At what run level is the cron daemon started? 1 2 S 4
2:	On your system, file cron.allow exists and is empty. File cron.deny is also present and contains the login name of user boota . Who is allowed to use cron ? all users all users except user boota only the root user Nobody is allowed to use cron .
3:	A crontab entry is shown below. At what time will the trimlog command be executed? 0 * 1,6 1 * /home/root/trimlog At 1 a.m. and 6 a.m. of the first day of every month. At 1 a.m. and 6 a.m. of every day of January. At every hour of the first and sixth days of January. At every hour of the first and sixth days of the first week.
4:	It is exactly 12:00 noon. You want to execute a command at the same time the next day. Which of the following commands will you use? at now + 1 day at now + 24 hour at 12 pm tomorrow All of the above.

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