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Question Detail

Which is single user operating system

  • MS-DOS
  • UNIX
  • XENIX
  • LINUX

Answer: Option A

Similar Questions :

1. Macintosh computer uses

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

Answer: Option B

2. Semaphores function is to

  • synchronize critical resources to prevent deadlock
  • synchronize processes for better CPU utilization
  • used for memory management
  • none of above

Answer: Option A

3. Dispatcher function is to

  • put tasks in I/O wait
  • schedule tasks in processor
  • change task priorities
  • All of above

Answer: Option A

4. In which scheduling policies, context switching never takes place

  • FCFS
  • round robin
  • Shortest job first
  • Pre-empitive

Answer: Option A

5. Belady anamoly occurs in

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

Answer: Option B

Read more from - Operating System Questions Answers - Chapter 1
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