Operating System Questions Answers - Chapter 1

• 29. Semaphores function is to

  1. synchronize critical resources to prevent deadlock
  2. synchronize processes for better CPU utilization
  3. used for memory management
  4. none of above

  Answer And Explanation

  Answer: Option A

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• 30. Fragmentation of a file system

  1. occurs only is file is not used properly
  2. can always be prevented
  3. happens in all file systems
  4. can be removed by compaction

  Answer And Explanation

  Answer: Option B

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• 31. A public key encryption system

  1. Allows only the correct sender to decode the data
  2. Allows only the correct receiver to decode the data
  3. Allows anyone to decode the data
  4. none of above

  Answer And Explanation

  Answer: Option B

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• 32. A high paging rate

  1. may cause a high I/O rate
  2. keeps the system running well
  3. is a symptom of too much processor activity
  4. always creates a slow system

  Answer And Explanation

  Answer: Option A

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• 33. Creating a job queue is a function of

  1. Spooler
  2. Interperator
  3. Complier
  4. Drive

  Answer And Explanation

  Answer: Option A

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• 34. Which operating system use write through catches

  1. UNIX
  2. XENIX
  3. ULTRIX
  4. DOS

  Answer And Explanation

  Answer: Option D

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• 35. Which process is known for initializing a microcomputer with its OS

  1. cold booting
  2. boot recording
  3. booting
  4. warm booting

  Answer And Explanation

  Answer: Option C

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