Operating System MCQs with Answers
Practice important Operating System MCQs with answers and explanations.
Multiple Choice Questions
Q881: When a program is executed in a paging system, the CPU generates a _______ to reference the memory.
- A: logical address
- B: physical address
- C: virtual address
- D: none of the above
View Answer
A
Q882: What type of fragmentation is eliminated by paging?
- A: Internal fragmentation
- B: External fragmentation
- C: None of the above
- D: Both A and B
View Answer
B
Q883: In the page table, the entry stores the _______ where the page is loaded in memory.
- A: Segment number
- B: Frame number
- C: Memory offset
- D: Page number
View Answer
B
Q884: Which memory management technique allows a program's physical address space to be non-contiguous?
- A: Paging
- B: MVT
- C: Fixed partitioning
- D: None of the above
View Answer
A
Q885: Which of the following is true about memory management in MVT?
- A: Memory partitions are fixed-sized
- B: Internal fragmentation is minimized
- C: External fragmentation is completely eliminated
- D: Processes can change in size
View Answer
B
Q886: A logical address in a paging system consists of a _______ and a _______.
- A: page number, frame offset
- B: page number, page offset
- C: process number, page offset
- D: page offset, frame number
View Answer
A
Q887: The main problem solved by paging is _______.
- A: External fragmentation
- B: Internal fragmentation
- C: Address translation issues
- D: Memory leak
View Answer
A
Q888: Which of the following refers to the memory management scheme used to divide memory into fixed-size blocks?
- A: Paging
- B: MVT
- C: Segmentation
- D: Fixed partitioning
View Answer
A
Q889: Which address space is divided into pages?
- A: Physical address space
- B: Logical address space
- C: Segment address space
- D: All of the above
View Answer
B
Q890: The logical address consists of the page number and _______.
- A: page offset
- B: frame number
- C: segment offset
- D: none of the above
View Answer
B