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Shortest Job First executes first the job

  • with the least processor needs
  • that first entered the queue
  • that has been in the queue for the longest
  • that last entered the queue

Answer: Option A

Similar Questions :

1. A thread is

  • lightweight process where the context switching is low
  • lightweight process where the context swithching is high
  • used to speed up paging
  • used in dead locks

Answer: Option A

2. Semophores are used to solve the problem of

  • race condition
  • process synchronization
  • mutual exclusion
  • belady problem

Answer: Option C

3. Belady anamoly occurs in

  • Optimal replacement
  • FIFO
  • LRU
  • both in FIFO and LRU

Answer: Option B

4. Macintosh computer uses

  • System 7.0
  • AU/X
  • Xenix
  • none of above

Answer: Option B

5. A series of statements explaining how the data is to be processed is called

  • instruction
  • compiler
  • program
  • interpretor

Answer: Option C

Read more from - Operating System Questions Answers - Chapter 1