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- Question
Which of the following statements is false?
Options- A. a small page size causes large page tables
- B. internal fragmentation is increased with small pages
- C. a large page size causes instructions and data that will not be referenced brought into primary storage
- D. I/O transfers are more efficient with large pages
- E. None of the above
- Correct Answer
- internal fragmentation is increased with small pages
- 1. With MS-DOS which command will divide the surface of the blank floppy disk into sectors and assign a unique address to each one?
Options- A. FORMAT command
- B. FAT command
- C. VER command
- D. CHKDSK command
- E. None of the above Discuss
- 2. The initial value of the semaphore that allows only one of the many processes to enter their critical sections, is
Options- A. 8
- B. 1
- C. 16
- D. 0
- E. None of the above Discuss
- 3. Software that measures, monitors, analyzes, and controls real-world events is called:
Options- A. system software
- B. real-time software
- C. scientific software
- D. business software
- E. None of the above Discuss
- 4. If the number of bits in a virtual address of a program is 16 and the page size is 0.5 K bytes, the number of pages in the virtual address space is
Options- A. 16
- B. 32
- C. 64
- D. 128
- E. None of the above Discuss
- 5. Producer consumer problem can be solved using
Options- A. semaphores
- B. event counters
- C. monitors
- D. all of the above
- E. None of the above Discuss
- 6. Seeks analysis
Options- A. is used for analyzing paging problems
- B. is used for analyzing device busy problems
- C. is used for analyzing control-unit busy problems
- D. is only shown on real-time displays
- E. None of the above Discuss
- 7. The dispatcher
Options- A. actually schedules the tasks into the processor
- B. puts tasks in I/O wait
- C. is always small and simple
- D. never changes task priorities
- E. None of the above Discuss
- 8. Data encryption
Options- A. is mostly used by public networks
- B. is mostly used by financial networks
- C. cannot be used by private installations
- D. is not necessary, since data cannot be intercepted
- E. None of the above Discuss
- 9. The SJF algorithm executes first the job
Options- A. that last entered the queue
- B. that first entered the queue
- C. that has been in the queue the longest
- D. with the least processor needs
- E. None of the above Discuss
- 10. Most of the microcomputer's operating systems like Apple DOS, MS DOS and PC DOS etc. are called disk operating systems because
Options- A. they are memory resident
- B. they are initially stored on disk
- C. they are available on magnetic tapes
- D. they are partly in primary memory and partly on disk
- E. None of the above Discuss
Operating Systems Concepts problems
Search Results
Correct Answer: FORMAT command
Correct Answer: 1
Correct Answer: real-time software
Correct Answer: 128
Correct Answer: all of the above
Correct Answer: is used for analyzing device busy problems
Correct Answer: actually schedules the tasks into the processor
Correct Answer: is mostly used by financial networks
Correct Answer: with the least processor needs
Correct Answer: they are initially stored on disk
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