Linux Foundation LFCS Exam Practice Test Instant Access

Question 1

The output of the program date should be saved in the variable actdat. What is the correct statement?

Aactdat=`date`

Bset actdat='date'

Cdate | actdat

Ddate > $actdat

Eactdat=date

Answer : A

Question 2

Which of the following commands will output all of the lines with the name Fred in upper or lower case but not the word red from the file data_file? (Choose two)

Agrep -v fred data_file

Bgrep '[f]red' data_file

Cegrep fred data_file

Dgrep '[Ff]red' data_file

Egrep -i fred data_file

Answer : D, E

Question 3

What does the exit status 0 indicate about a process?

AThe process ended without any problems.

BThe process was terminated by the user.

CThe process couldn't finish correctly.

DThe process waited for an input but got none.

EThe process finished in time.

Answer : A

Question 4

Which of the following commands redirects the output of cmd to the file foo.txt, in which an existing file is overwritten?

Acmd || foo.txt

Bcmd | foo.txt

Ccmd && foo.txt

Dcmd >> foo.txt

Ecmd > foo.txt

Answer : E

Question 5

Which configuration file would be edited to change default options for the OpenSSH server?

A/etc/ssh/sshd_config

B/etc/ssh/ssh

C/etc/ssh/server

D/etc/ssh/ssh_config

E/etc/ssh/ssh_server

Answer : A

Question 6

Which command, depending on its options, can display the open network connections, the routing tables, as well as network interface statistics. (Specify ONLY the command without any path or parameters.)

See Below Explanation:

Answer : A

Question 7

Which of the following statements is valid in the file /etc/nsswitch.conf?

Amulti on

B192.168.168.4 dns-server

Chosts: files dns

Dinclude /etc/nsswitch.d/

Answer : C

Linux Foundation LFCS LINUX FOUNDATION CERTIFIED SYSTEM ADMINISTRATOR Exam Practice Test