Wednesday, 25 March 2020

Operating systems questions set 4

Operating systems TRUE / FALSE questions for competitive exams



Operating Systems Quiz with Answers - 4


1. Multiple processes can correspond to the same program / executable file at the same time.
(a) TRUE                                                   (b) FALSE
Answer: TRUE. Multiple processes can correspond to the same program at same time. [source: ISIC]

2. The same process can correspond to multiple programs / executable files (not necessarily at the same time).
(a) TRUE                                                   (b) FALSE
Answer: FALSE. [source: ISIC]

3. Memory Mapped I/O devices are accessed with special instructions not used for normal computation.
(a) TRUE                                                   (b) FALSE
Answer: FALSE. Memory Mapped I/O devices are accessed with normal loads and stores. [source: UCB]

4. RAID-5 is 5 times more reliable than RAID-1.
(a) TRUE                                                   (b) FALSE
Answer: FALSE. Actually, the numbers have nothing to do with the level of reliability. Both systems can handle a single disk failure. [source: UCB]

5. One advantage of a software TLB is that the same hardware platform can support both forward and inverse page tables.
(a) TRUE                                                   (b) FALSE
Answer: TRUE. Since TLB faults are handled in software, the OS can choose to implement page tables in any way desired. [source: UCB]



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