Lpi Linux Essentials 010-150 Questions & Answers

• Question 31:

  Which of the following is a combined audio/video interface for transmission of digital data?

  A. ATI

  B. DVD

  C. HDMI

  D. VGA

  E. DVI

  Correct Answer: C

• Question 32:

  Which of the following commands is used to look up the current IP address of a system?

  A. less /proc/net/ipconfig

  B. ifconfig

  C. showip

  D. ipconfig E. sysinfo | grep ipaddress

  Correct Answer: B

• Question 33:

  Which of the following commands can be used to extract content from a tar file?

  A. tar -xvf

  B. tar -vf

  C. tar -e

  D. tar -c

  E. tar v

  Correct Answer: A

• Question 34:

  Which command will display the last line of the file foo.txt?

  A. head -n 1 foo.txt

  B. tail foo.txt

  C. last -n 1 foo.txt

  D. tail -n 1 foo.txt

  Correct Answer: D

• Question 35:

  How can the normal output of a command be written to a file while discarding the error output?

  A. command >2>file 1and>/dev/null

  B. command < output > /dev/null

  C. command > discard-error > file

  D. command > /dev/null 2and>1 output

  E. command >file 2>/dev/null

  Correct Answer: E

• Question 36:

  What is the output of the following command?

  for token in a b c; do

  echo -n ${token};

  done

  A. anbncn

  B. abc

  C. $token$token$token

  D. {a}{b}{c}

  E. a b c

  Correct Answer: B

• Question 37:

  Which of the following commands will set the variable text to olaf is home? (Select TWO answers)

  A. text=olaf\ is\ home

  B. text=$olaf is home

  C. $text='olaf is home'

  D. text=='olaf is home'

  E. text="olaf is home"

  Correct Answer: AE

• Question 38:

  Which of the following commands will create an archive file, named backup.tar, containing all the files from the directory /home?

  A. tar /home backup.tar

  B. tar -cf /home backup.tar

  C. tar -xf /home backup.tar

  D. tar -xf backup.tar /home

  E. tar -cf backup.tar /home

  Correct Answer: E

• Question 39:

  How can the current directory and its subdirectories be searched for the file named MyFile.xml?

  A. find . -name MyFile.xml

  B. grep MyFile.xml | find

  C. grep -r MyFile.xml .

  D. less MyFile.xml

  E. search Myfile.xml ./

  Correct Answer: A

• Question 40:

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

  A. actdat=`date`

  B. set actdat='date'

  C. date | actdat

  D. date > $actdat

  E. actdat=date

  Correct Answer: A