Which one of these directories should not be backed up?

A/backup

B/etc

C/opt

D/proc

E/var/log

Answer : D

Which of the following commands erases the contents of the /dev/sdb3 partition?

Arm /dev/sdb3

Bdd if=/dev/zero of=/dev/sdb3

Cdd of=/dev/zero if=/dev/sdb3

Dumount /dev/sdb3

Answer : B

What command is used to send messages to all users currently logged in? (Specify ONLY the command without any path or parameters.)

See Below Explanation:

Answer : A

Which of the following commands restores only those files containing lpi in their name from the archive lpifiles.tar.gz?

Atar xvzf lpifiles.tar.gz --wildcards '*lpi*'

Btar xvzwf lpifiles.tar.gz '*lpi*'

Ctar -xvfz lpifiles.tar.gz --deep '*lpi*'

Dtar -xvzf lpifiles.tar.gz --subdirs '*lpi*'

Etar xvzf lpifiles.tar.gz --globbing '*lpi*'

Answer : A

In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?

Asa1

Bsarmon

Csarec

Dsadf

Esarcron

Answer : A

Free Practice Questions for LPI 201-450 Exam