Linux Interview MCQ

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

• Sysconf(_SC_PAGE_SIZE) returns?
  ক

  size of the page

  খ

  max size of the page

  গ

  min size of the page

  ঘ

  paging allowed or not
• shared memory can be used for?
  ক

  read only operations

  খ

  append

  গ

  read or read write operations

  ঘ

  write only
• The terminal used by a Daemon process is:
  ক

  any terminal

  খ

  no terminal

  গ

  root terminal

  ঘ

  system console
• Daemon process is a?
  ক

  group leader

  খ

  session leader

  গ

  orphan process

  ঘ

  all of the mentioned
• ______________ timer is decremented only when the process is executing
  ক

  ITIMER_REAL

  খ

  ITIMER_VIRTUAL

  গ

  ITIMER_PROF

  ঘ

  None of the mentioned
• x86 architecture uses big endian or little endian addressing mechanism?
  ক

  little-endian

  খ

  endian

  গ

  big-endian

  ঘ

  none of the mentioned
• Which of the following exec call is a system call?
  ক

  execl

  খ

  execlp

  গ

  execve

  ঘ

  execvp
• System call can be implemented using which assembly instruction(s) on x86 processors?
  ক

  int 0×80

  খ

  sysenter

  গ

  both int 0×80 & sysenter

  ঘ

  None
• Section 2 of manpage describes
  ক

  Commands

  খ

  System calls

  গ

  Function calls

  ঘ

  Drivers
• Pick the run level to run Linux in multi user mode with networking?
  ক

  0

  খ

  3

  গ

  5

  ঘ

  6
• Runlevel system command is used for?
  ক

  getting the present and previous runlevel of the system

  খ

  setting the runlevel attribute of the system in the inittab file

  গ

  can be used to restart or reboot the system

  ঘ

  all of the mentioned
• Monolithic kernel
  ক

  is highly extensiblity

  খ

  has less run time overhead

  গ

  smaller than micro level

  ঘ

  suitable for real time system
• UNIX/Linux kernel is?
  ক

  Monolithic

  খ

  Micro

  গ

  Exo

  ঘ

  Nano
• A communication end-point is identified by
  ক

  ip address

  খ

  port number

  গ

  both IP address and port number

  ঘ

  none of the mentioned
• A server which is handling many clients at a time is called as
  ক

  single server

  খ

  multiserver

  গ

  concurrent server

  ঘ

  iterative server
• A server which is handling one client at a time is called as
  ক

  single server

  খ

  multiserver

  গ

  concurrent server

  ঘ

  iterative server
• Race condition can be avoided by using
  ক

  semaphore

  খ

  mutex

  গ

  socket

  ঘ

  both semaphore & mutex
• Which call to use to set the resource count of semaphore?
  ক

  semget( )

  খ

  semctl( )

  গ

  sem_setcount( )

  ঘ

  sem_set_count( )
• Semaphore P( ) operation usually does the following:
  ক

  descrements the semaphore count and the process sleeps if needed

  খ

  increments the semaphore count

  গ

  wakes up a sleeping process

  ঘ

  none of the mentioned
• One process requires M resource to complete a job. What should be the minimum number of resources available for N processes so that at least one process can continue to execute without blocking/waiting?
  ক

  M * N

  খ

  M * N – 1

  গ

  M * N + 1

  ঘ

  M
• The structure which keeps the information about shared memory in the kernel is
  ক

  struct ipc_perm

  খ

  struct semid_ds

  গ

  struct shmid_ds

  ঘ

  struct msgid_ds
• What is the persistancy level of Shared memory segments?
  ক

  signal

  খ

  process

  গ

  file system

  ঘ

  kernel
• Which is Fastest IPC?
  ক

  Message Queue

  খ

  shared memory

  গ

  Socket

  ঘ

  All of the mentioned
• Command used to check shared memory is
  ক

  ipcs

  খ

  ipcs -m

  গ

  ipcs -s

  ঘ

  ipcs -q
• Message queues are created in
  ক

  userspace

  খ

  kernelspace

  গ

  userspace & kernelspace

  ঘ

  none of the mentioned
• Which is not the correct option for removing a message queue
  ক

  ipcrm -Q

  খ

  ipcrm -q

  গ

  ipcrm -m

  ঘ

  none of the mentioned
• Which system call is used to create Sys V message Queue.
  ক

  msgget

  খ

  shemget

  গ

  semget

  ঘ

  msgctl
• Which one of the following is not system V IPC ?
  ক

  Shared Memory

  খ

  Semaphores

  গ

  FIFO

  ঘ

  Message Queues
• System V IPC common attributes are
  ক

  key

  খ

  id

  গ

  owner

  ঘ

  all of the mentioned
• What mkfifo() creats?
  ক

  pipe

  খ

  unnamed pipe

  গ

  named pipe

  ঘ

  msg queue