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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

Answer: Option B

Similar Questions :

1. Dispatcher function is to

  • put tasks in I/O wait
  • schedule tasks in processor
  • change task priorities
  • All of above

Answer: Option A

2. For multiprogramming operating system

  • special support from processor is essential
  • special support from processor is not essential
  • cache memory is essential
  • none of above

Answer: Option B

3. Which operating system use write through catches

  • UNIX
  • XENIX
  • ULTRIX
  • DOS

Answer: Option D

4. Four necessary conditions for deadlock are non pre-emption, circular wait, hold and wait and

  • mutual exclusion
  • race condition
  • buffer overflow
  • None of above

Answer: Option A

5. 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

Read more from - Operating System Questions Answers - Chapter 1
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