Question Detail

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. 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

2. Disk scheduling includes deciding

  • which should be accessed next
  • order in which disk access requests must be serviced
  • the physical location of the file
  • the logical location of the file

3. Dijkstra's algorithm deals with

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

4. Remote computing services involves the use of timesharing and

  • multiprocessing
  • interactive processing
  • batch processing
  • real time processing

5. Multiprogramming systems

  • Are easier to develop than single programming systems
  • Execute each job faster
  • Execute more jobs in the same time
  • Are used only on large main frame computers
Read more from - Operating System Questions Answers - Chapter 1