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Operating system is

  • A collection of hardware components
  • A collection of input output devices
  • A collection of software routines
  • All of above

Answer: Option C

Similar Questions :

1. Reference bit is used for

  • Implementing LRU page replacement algorithm
  • Implementing NRU algorithm
  • To check the page table entry in the cache memory
  • none of above

Answer: Option B

2. Fragmentation of a file system

  • occurs only is file is not used properly
  • can always be prevented
  • happens in all file systems
  • can be removed by compaction

Answer: Option B

3. Dirty bit is used to show

  • Page with corrupted data
  • Wrong page in memory
  • Page that is modified after being loaded in the cache memory
  • page that is less frequently accessed

Answer: Option C

4. The LRU algorithm

  • pages out pages that have been used recently
  • pages out pages that have not been used recently
  • pages out pages that have been least used recently
  • pages out the first page in a given area

Answer: Option C

5. Dijkstra's algorithm deals with

  • mutual exclusion
  • deadlock recovery
  • deadlock avoidance
  • cache coherence

Answer: Option C

Read more from - Operating System Questions Answers - Chapter 1
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