LFCS Linux-Foundation Exam Questions and Free Practice Test

Question 7

Given a file called birthdays containing lines like:
YYYY-MM-DD Name 1983-06-02 Tim
1995-12-17 Sue
Which command would you use to output the lines belonging to all people listed whose birthday is in May or June?

A. grep '[56]' birthdays

B. grep 05?6? birthdays

C. grep '[0-9]*-0[56]-' birthdays

D. grep 06 birthdays | grep 05

Correct Answer:C

Question 8

Which of the following commands is used to update the list of available packages when using dpkg based package management?

A. apt-get update

B. apt-get upgrade

C. apt-cache update

D. apt-get refresh

E. apt-cache upgrade

Correct Answer:A

Question 9

What output will the following command produce? seq 1 5 20

A. 161116

B. 151015

C. 1234

D. 2345

E. 5101520

Correct Answer:A

Question 10

Which of the following Linux filesystems preallocates a fixed number of inodes at the filesystem's make/creation time and does NOT generate them as needed? (Choose TWO correct answers.)

A. ext3

B. JFS

C. ext2

D. XFS

E. procfs

Correct Answer:AC

Question 11

Which command chain will count the number of regular files with the name of foo.txt within
/home?

A. ls -lR /home | grep foo.txt | wc -l

B. find /home -type f -name foo.txt | wc -l

C. find /home -name foo.txt -count

D. find /home -name foo.txt | wc -l

E. grep -R foo.txt /home | wc -l

Correct Answer:B

Question 12

Which command makes the shell variable named VARIABLE visible to subshells?

A. export $VARIABLE

B. export VARIABLE

C. set $VARIABLE

D. set VARIABLE

E. env VARIABLE

Correct Answer:B

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