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If the CPU scheduling policy is FCFS, then what would be average waiting time ?

  • 10 ms
  • 10.8 ms
  • 12 ms
  • 12.8 ms

Answer: Option D

Similar Questions :

1. What are global locks ?

  • they synchronize access to local resources
  • they synchronize access to global resources
  • they synchronize access to local and global resources
  • none of above

Answer: Option B

2. When did IBM released the first version of its disk operating system DOS version 1.0 ?

  • 1981
  • 1982
  • 1983
  • 1984

Answer: Option A

3. Which of the following memory allocation scheme is subject to external fragmentation ?

  • Segmentation
  • Swapping
  • Demand Paging
  • Multiple Contiguous Fixed Partitions

Answer: Option A

4. Belady anomaly occurs in ?

  • LIFO
  • FIFO
  • LRU
  • NRU

Answer: Option B

5. What is a page fault ?

  • is an spelling error in a page in memory
  • is a reference to a page which is in another program
  • is an access to a page not currently in memory
  • always occurs whenever a page is accessed

Answer: Option C

Read more from - Operating System Questions Answers - Set 2
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