Operating System MCQs with Answers
Practice important Operating System MCQs with answers and explanations.
Multiple Choice Questions
Q901: The size of the page table entry (PTE) depends on the number of ______.
- A: pages
- B: frames
- C: bits in the address
- D: frames in memory
View Answer
C
Q902: The performance of paging depends on the ______.
- A: effective memory access time
- B: page table size
- C: number of pages
- D: size of logical address space
View Answer
A
Q903: The number of bits needed for the frame number in a PDP-11 is ______.
- A: 3
- B: 5
- C: 12
- D: 16
View Answer
A
Q904: The effective memory access time in paging is given by the formula ______.
- A: Teffective = HR * Tmem
- B: Teffective = HR * (Tmem + TTLB)
- C: Teffective = Tmem + TTLB
- D: Teffective = HR * (Tmem + TTLB) + MR * (Tmem + 2*Tmem)
View Answer
D
Q905: The TLB is used to store ______ pairs in a paging system.
- A: (p, d)
- B: (f, d)
- C: (p, f)
- D: (p, p)
View Answer
C
Q906: A hit in the TLB means that ______.
- A: the address is found in the page table
- B: the page is found in memory
- C: the page number is found in the TLB
- D: the frame number is found in the main memory
View Answer
C
Q907: In paging, the effective memory access time on a miss is ______.
- A: 2Tmem + TTLB
- B: Tmem + 2Tmem
- C: 2Tmem + 2Tmem
- D: Tmem + TTLB
View Answer
B
Q908: The hit ratio in a paging system indicates ______.
- A: the likelihood of accessing the TLB
- B: the page fault rate
- C: the number of TLB entries
- D: the memory access time
View Answer
A
Q909: The physical address in a paging system is made up of ______.
- A: frame number and page offset
- B: page number and frame number
- C: page number and page offset
- D: frame number and logical address
View Answer
A
Q910: In Intel P4, the number of bits needed for the frame is ______.
- A: 12
- B: 10
- C: 5
- D: 8
View Answer
C