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operating systems Online Quiz - 67

Description: operating systems Online Quiz - 67
Number of Questions: 20
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Tags: operating systems
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Shell Varialbles are ?

  1. TERM,SHELL, MAIL

  2. SHELL,MAIL,HOME

  3. WALL,HOME,SHELL

  4. HOME,SHELL,TERM,WALL


Correct Option: A

How many prompts are available in a UNIX system and what it is ?

  1. 3,PS1,PS2,PS3

  2. 4,PS1, PS2, PS3, PS4

  3. 2,PS1, PS2

  4. 1,PS1


Correct Option: B

What option can you use with the Unix "ls" command to display file attributes?

  1. "-d"

  2. "-a"

  3. "-l'

  4. "-x"


Correct Option: C

This is the command used for finding the free disk space for all filesystems

  1. du

  2. df

  3. diskusg

  4. dp


Correct Option: B
  1. netpmon

  2. ipconfig

  3. netstat

  4. nfsstat


Correct Option: C

The diff command only works with input files that are text files

  1. True

  2. False


Correct Option: A

What is the output of the following command in an empty directory touch -c Filethtdoesntexist.txt

  1. No output

  2. Error saying "no such file exists"

  3. File created with the specified name

  4. None of these


Correct Option: A

What is the output of the following echo My && echo little || echo world

  1. My little world

  2. My little

  3. My world

  4. little world


Correct Option: B
  1. hostid

  2. Only userid

  3. Userid and groupid

  4. hostname


Correct Option: C

To cut the selected it we normally use Ctrl + X .What is the alternative shortcut for this ?

  1. alt + del

  2. ctrl + del

  3. shift + del

  4. esc + x


Correct Option: C
  1. alt + c

  2. ctrl + ins

  3. alt + ins

  4. shift + ins


Correct Option: B

Alternative option for Ctrl + V (Paste)

  1. alt + ins

  2. alt + v

  3. ctrl + ins

  4. shift + ins


Correct Option: D

List in chronological order, when these languages became officially recognised as a standard i. ANSI C ii. ANSI COMMON LISP iii. ANSI Cobol iv. ANSI ADA

  1. i , ii , iii , iv

  2. i , iii , ii , iv

  3. iv, iii , i , ii

  4. i , iv , iii , ii


Correct Option: C,D
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