Tag: operating systems

Questions Related to operating systems

Which is the inner most layer in unix operating system

technology operating systems

  1. Hardware

  2. Kernel

  3. Shell

  4. Application Programs

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Correct Option: B

Which command is used to modify the modification time and access times of a file
technology operating systems

  1. modify

  2. touch

  3. cat

  4. Not possible

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Correct Option: B

Which command is used to create a zero size file?

technology operating systems

  1. cat

  2. create

  3. touch

  4. new

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Correct Option: C

Which command gives the time of last inode modification?
technology operating systems

  1. ls -i

  2. ls -l

  3. ls -li

  4. ls-lc

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Correct Option: D

Which command can be used to view the current users login name?
technology operating systems

  1. logname

  2. who

  3. whos

  4. ps

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Correct Option: A

UNIX is a single user operating environment
technology operating systems

  1. True

  2. False

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Correct Option: B

Whats the command used when the terminal settings are disrupted and we see garbage in our terminal
technology operating systems

  1. stty -d

  2. tput clear

  3. stty sane

  4. stty clear

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Correct Option: C

Which of the following commands can compress a file and as well as archive it?
technology operating systems

  1. tar

  2. gzip

  3. xr

  4. zip

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Correct Option: D

Which environment variable can be used to change the shell prompt?
technology operating systems

  1. TERM

  2. PROMPT

  3. PS1

  4. PS2

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Correct Option: C

Unix treats the main memory(RAM) of a PC as a file.
technology operating systems

  1. True

  2. False

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Correct Option: A