Operating System Architecture Set 5

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This set of Operating System Architecture Multiple Choice Questions & Answers (MCQs) focuses on Operating System Architecture Set 5

Q1 | Which command is used to extract specific columns from the file?
  • cut
  • grep
  • past
  • cat
Q2 | Which command is used with vi editor to move the cursor to the left?
  • i
  • k
  • j
  • h
Q3 | Which command is used to create a directory?
  • crdir
  • mkdir
  • md
  • cr
Q4 | Which of the following changes permission to deny write permission to group and others?
  • chmod go-w filex
  • chmod go w filex
  • chmod go=w file
  • none of the above
Q5 | Which command is used with vi editor to delete a single character?
  • z
  • y
  • a
  • x
Q6 | The tar command in UNIX
  • used to create compressed archives of directories and files
  • used to extract directories and files from an archives
  • both a and b
  • none of the above
Q7 | Which command is used to sort the lines of data in a file in reverse order
  • sort
  • sh
  • st
  • sort -r
Q8 | Which of the following commands is used to rename a file?
  • rename
  • mv
  • remove
  • ren
Q9 | Which command is used to display a file contents in octal form?
  • cd
  • of
  • od
  • oct
Q10 | Which of the following commands is used to count the total number of lines,words and characters contained in a file?
  • count p
  • wcount
  • wc
  • count w
Q11 | The cc command makes a total of
  • 1 pass
  • 2 pass
  • 4 pass
  • 5 pass
Q12 | Which of the following commands is used for an automatic remainder service?
  • write
  • calender
  • mail
  • mesg
Q13 | The Unix command used to find out the number of characters in a file is
  • nc
  • wc
  • chcnt
  • c
Q14 | In a system ,if 5 people are currently using vi editor ,then the number of corresponding processes will be
  • 1
  • 5
  • 3
Q15 | Which set option is used with vi editor to display line numbers on screen?
  • nm
  • nu
  • ic
  • li
Q16 | Which command will be used with vi editor to move back to the beginning of a word?
  • b
  • e
  • a
  • w
Q17 | Which of the following are not system calls?
  • chmod
  • open
  • lseek
  • getc
Q18 | The advantage of binary files over text files is that
  • it is compact
  • it can be accessed faster
  • many commands assume the named file to be a binary file
  • they are more reliable
Q19 | The cat command is used to
  • print a file
  • display a file
  • capture a file
  • copy a file
Q20 | Command compares two files byte by byte and displays the first mismatch.
  • cmp
  • comp
  • cmap
  • none of these
Q21 | Which of the following system calls,does not return control to the calling point, on termination?
  • fork
  • exec
  • ioct1
  • longjmp
Q22 | Which command is used to display the characteristics of a process?
  • pid
  • ps
  • du
  • au
Q23 | Which command is used to display and create files?
  • cat
  • ed
  • vi
  • lyrix
Q24 | Files that can store data in the same format as used in program are called
  • binary files
  • source file
  • text file
  • core