Process Management MCQ

Test your knowledge with important Process Management MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Process Management MCQs at Bissoy

• Nice can be used by an ordinary process to
  ক

  increase the priority of a process

  খ

  decrease the priority of a process

  গ

  increase or decrease the priority of a process

  ঘ

  none of the mentioned
• The maximum time slice that can be given to a process in Linux (where tick is 10ms) is
  ক

  150ms

  খ

  10ms

  গ

  300 ms

  ঘ

  600ms
• Which niceness value among the following indicate most favorable scheduling?
  ক

  0

  খ

   19

  গ

  5 

  ঘ

   -20
• Fork returns _____ to parent process on success
  ক

  0

  খ

  child process id

  গ

  parent process id

  ঘ

  none
• If the fork() system call returns -1, then it means?
  ক

  No new child process is created

  খ

  The child process is an orphan

  গ

  The child process is in Zombie

  ঘ

  none of the mentioned
• Return value of fork() system call can be:
  ক

  -1,<0, 0

  খ

  -1,>0, 0

  গ

  -1,<0

  ঘ

  none of the mentioned
• The process which terminates before the parent process exits becomes
  ক

  Zombie

  খ

  Orphan

  গ

  Child

  ঘ

  None of the mentioned
• Parent process id of a deamon process is_________________
  ক

  2

  খ

  3

  গ

  4

  ঘ

  1
• How do you get parent process identification number?
  ক

  waitpid

  খ

  getpid()

  গ

  getppid()

  ঘ

  parentid()
• What is the default maximum number of processes that can exist in Linux?
  ক

  32768

  খ

  1024

  গ

  4096

  ঘ

  unlimited
• Pid of init process
  ক

  0

  খ

  1

  গ

  32767

  ঘ

  none of the mentioned
• What is a context switch?
  ক

  Kernel switches from executing one process to another

  খ

  Process switches from kernel mode to user mode

  গ

  Process switches from user mode to kernel mode

  ঘ

  None of the mentioned
• nohup is used to
  ক

  automatically hang up the process after logout

  খ

  continue the process after logout

  গ

  create backgroung process

  ঘ

  manually hang up the process after logout
• we can change the priority of a running process using
  ক

  nice

  খ

  renice

  গ

  priority cannot be changed for a running process

  ঘ

  only superuser can change the priority
• The signal sent to a process when the Ctrl-C key is pressed is
  ক

  KILL

  খ

  TSTP

  গ

  TERM

  ঘ

  INT
• When a child process exits before the parent process exits, which of the following is true:
  ক

  the child process becomes defunct

  খ

  the parent process becomes defunct

  গ

  if the parent process does not handle SIGCHLD, the child process becomes a zombie

  ঘ

  none of the mentioned
• Which of the following values for STAT column of ps command is not true:
  ক

  status R means running

  খ

  Status S means sleeping

  গ

  Status E means exited

  ঘ

  Status Z means zombie
• Process information in the current shell can be obtained by using
  ক

  kill

  খ

  bg

  গ

  fg

  ঘ

  ps
• Which command can be executed by a user who is already logged into the system, in order to change to the root user? (type the command without any parameters)
  ক

  su

  খ

  root

  গ

  chroot

  ঘ

  user
• How to run a process in the background?
  ক

  &

  খ

  *

  গ

  ?

  ঘ

  |
• Which command is used to bring the background process to forground?
  ক

  bg

  খ

  fg

  গ

  background

  ঘ

  forground
• If a program executing in background attempts to read from STDIN
  ক

  It is terminated

  খ

  It’s execution is suspended

  গ

  STDIN is made available to it

  ঘ

  None of the mentioned
• To find out how efficiently a program a used the system resources, which command is used?
  ক

  sys

  খ

  time

  গ

  crontab

  ঘ

  daemon
• Which of the following command will remove the current crontab?
  ক

  crontab -p

  খ

  crontab -l

  গ

  crontab -e

  ঘ

  crontab -r
• The cron tab is a table having a list of commands that are scheduled to be run at regular intervals.
  ক

  True

  খ

  False
• What is cron?
  ক

  a simple process

  খ

  an orphan process

  গ

  a daemon

  ঘ

  a zombie process
• What is a daemon?
  ক

  process whose parent has died

  খ

  process who has completed its execution but still has an entry in the process table

  গ

  process which is running infinitely

  ঘ

  process which runs automatically without any user interaction
• Jobs scheduled using batch command can be removed using ___ option.
  ক

  -a

  খ

  -d

  গ

  -f

  ঘ

  -r
• Jobs scheduled using batch command goes to a special at queue.
  ক

  True

  খ

  False
• Which command permits to schedule jobs for later execution, as soon as the system load permits?
  ক

  at

  খ

  %

  গ

  batch

  ঘ

  cron