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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
Similar Questions :

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

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

2. 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

3. Banker's algorithm deals with

  • deadlock prevention
  • deadlock avoidance
  • deadlock recovery
  • mutual exclusion

4. 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

5. Scissoring enables

  • a part of data to be displayed
  • entire data to be displayed
  • full data display on fulll area of sceen
  • no data display
Read more from - Operating System Questions Answers - Chapter 1
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