Operating System Questions Answers - Chapter 1

• 1. Creating a job queue is a function of

  1. Spooler
  2. Interperator
  3. Complier
  4. Drive

  Answer :

  Option A

• 2. The part of machine level instruction, which tells the central processor what has to be done, is

  1. Operation code
  2. Address
  3. Locator
  4. Flip-Flop

  Answer :

  Option A

• 3. Main function of shared memory is:

  1. to use primary memory efficently
  2. to do intra process communication
  3. to do inter process communication
  4. none of above

  Answer :

  Option C

• 4. Which among following scheduling algorithms give minimum average waiting time

  1. FCFS
  2. SJF
  3. Round robin
  4. On priority

  Answer :

  Option B

• 5. To avoid the race condition, the number of processes that may be simultaneously inside the critical section is

  1. 12
  2. 3
  3. 1
  4. 0

  Answer :

  Option C

• 6. Size of virtual memory depends on

  1. size of data bus
  2. size of address bus
  3. size of main memory
  4. none of above

  Answer :

  Option B

• 7. Which is single user operating system

  1. MS-DOS
  2. UNIX
  3. XENIX
  4. LINUX

  Answer :

  Option A