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. Problem of thrashing is affected significantly by

  • program structure
  • program size
  • primary storage size
  • all of above

2. A hardware device which is capable of executing a sequence of instructions, is known as

  • CPU
  • ALU
  • CU
  • Processor

3. Daisy chain is a device for

  • connecting a number of controllers to a device
  • connecting a number of device to a controller
  • all of above
  • none of above

4. Dynamic allocation of storage areas with VSAM files is accomplished by

  • hashing
  • control splits
  • over flow areas
  • relative recording

5. Root directory of a disk should be placed

  • at the fixed address in the main memory
  • at a fixed location on the disk
  • at the fixed location on system disk
  • anywhere on the disk
Read more from - Operating System Questions Answers - Chapter 1