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MCQs

Total Questions : 149 | Page 3 of 15 pages
Question 21. The Octal number to be given alogn with chmod command to make a file readable, writable and executable to the owner, readable and executable to group and others is:
  1.    744
  2.    555
  3.    755
 Discuss Question
Answer: Option C. -> 755
Question 22. Which of the following commands is used to display the directory attributes rather than its contents?
  1.    ls -F
  2.    ls -x
  3.    ls -l -d
  4.    ls -l
 Discuss Question
Answer: Option C. -> ls -l -d
Question 23. Which of the following files will displayed by this command cat *ch*
  1.    catch
  2.    All of these
  3.    patch
  4.    .ch
 Discuss Question
Answer: Option B. -> All of these
Question 24. Which of the following is not a communication command.
  1.    grep
  2.    write
  3.    mesg
  4.    mail
 Discuss Question
Answer: Option A. -> grep
Question 25. If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use
  1.    stty intr ^c
  2.    stty echo ^a
  3.    tty ^c
  4.    stty echoe
 Discuss Question
Answer: Option A. -> stty intr ^c
Question 26. Which command is used to remove a file?
  1.    remove
  2.    rm
  3.    mv
  4.    del
 Discuss Question
Answer: Option B. -> rm
Question 27. Which of the following keys is used to move the cursor to the end of the paragraph.
  1.    (
  2.    {
  3.    )
  4.    }
 Discuss Question
Answer: Option D. -> }
Question 28. Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters?
  1.    cat emp[a-z]
  2.    cat emp[!0-9]
  3.    more [emp][!0-9]
  4.    cat emp[x-z]
 Discuss Question
Answer: Option B. -> cat emp[!0-9]
Question 29. The command which transcribes the standard input to the standard output and also makes a copy of the same in a file is
  1.    sort
  2.    grep
  3.    tee
  4.    tr
 Discuss Question
Answer: Option C. -> tee
Question 30. Which symbol is used to separate more than one command in the same command line?
  1.    ;
  2.    $
  3.    #
  4.    :
 Discuss Question
Answer: Option A. -> ;

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