Tag: operating systems

Questions Related to operating systems

  1. SATA

  2. PRIMARY

  3. PATA

  4. NT

  5. FireWire

  6. iLink


Correct Option: A,C,E,F
  1. Kill -9 allows the child processes to be killed before parent process is killed and Kill forcefully kills the process without giving time to

  2. Kill allows the child processes to be killed before parent process is killed and Kill -9 forcefully kills the process without giving time to

  3. None of the above

  4. both are same


Correct Option: B
  1. crontab -t

  2. crontab -l

  3. crontab -e

  4. crontab -r


Correct Option: D
  1. This gives the file read/write by the owner and only read by everyone else

  2. This gives the file read/execute by the owner and only read by everyone else

  3. This gives the file read/write by the owner and only execute by everyone else

  4. This gives the file read/write/execute by the owner and only execute by everyone else


Correct Option: A
  1. ssh hostname

  2. ssh user@hostname

  3. ssh user hostname

  4. None of the above


Correct Option: B
  1. Uncompress the file myfile.gz

  2. compress the file myfile.gz and if the uncompressed file(s) already exist force an overwrite

  3. Uncompress the file myfile.gz and if the uncompressed file(s) already exist force an overwrite

  4. compress the file myfile.gz


Correct Option: C

Which command is used to delete all files in the current directory and all its sub-directories?

  1. rm

  2. rm -rf

  3. rm*

  4. rm -r *


Correct Option: D