Practice Pakistan's most useful MCQs for competitive exams

Which command is used to display the top of the file ?

• (A)  cat
• (B)  head
• (C)  more
• (D)  grep

Answer

Submitted By :Ali Uppal

Which option is used with the chmod command recursively to all files and sub-directories in a directory ?

• (A)  -1
• (B)  -i
• (C)  -x
• (D)  -R

Answer

Submitted By :Ali Uppal

What command is used with file named ‘letter’ to remove the executable permission from the user and assign read permission to the group and others ?

• (A)  chmod go + x, u – x letter
• (B)  chmod g – x, uo + r letter
• (C)  chmod go + r, u + x letter
• (D)  chmod u – x, go + r letter

Answer

Submitted By :Ali Uppal

Which command is used to terminate a process ?

• (A)  shutdown
• (B)  haltsys
• (C)  cancel
• (D)  kill

Answer

Submitted By :Ali Uppal

After you have compiled your kernel, what do you have to edit to boot your new kernel image ?

• (A)  /boot/lilo.conf
• (B)  /etc/conf.modules
• (C)  /etc/name
• (D)  boot

Answer

Submitted By :Ali Uppal

GNOME is based on________________?

• (A)  CORBA toolkit
• (B)  COM/DCOM toolkit
• (C)  ORE toolkit
• (D)  OLE DB toolkit

Answer

Submitted By :Ali Uppal

Which of the following commands is used to update access and modification times of a file ?

• (A)  grep
• (B)  wc
• (C)  touch
• (D)  cat

Answer

Submitted By :Ali Uppal

What command is used to sort the lines of data in a file in reverse order ?

• (A)  sort – r
• (B)  st
• (C)  sh
• (D)  sort

Answer

Submitted By :Ali Uppal

Which of the following commands is used to copy a file wb from the programs directory into a file called wbx in the misc directory ?

• (A)  copy programs/wb misc/wbx
• (B)  cp programs/wb misc/wbx
• (C)  tar programs/wb misc/wbx
• (D)  copy a:programs/wb b:misc/wbx

Answer

Submitted By :Ali Uppal

Which command allows you to view your file 24 lines at a time ?

• (A)  more
• (B)  pg
• (C)  cat
• (D)  lp

Answer

Submitted By :Ali Uppal