KB Cambodia
Supervisor state is
Supervisor state is A. never used B. entered by programs when they enter the processor C. required to perform any I/O D. only allowed to the operating system Answer: Option D
Category: Advanced Operation System
Thrashing
Thrashing A. is a natural consequence of virtual memory systems B. can always be avoided by swapping C. always occurs on large computers D. can be caused by poor paging algorithms Answer: Option D
The LRU algorithm
The LRU algorithm A. pages out pages that have been used recently B. pages out pages that have not been used recently C. pages out pages that have been least used recently D. pages out the first page in a…
Mutual exclusion problem occurs
Mutual exclusion problem occurs A. among processes that share resources B. between two disjoint processes that do not interact C. among processes that do not use the same resource D. none of the above Answer: Option D
The size of the virtual memory depends on the size of the
The size of the virtual memory depends on the size of the A. address bus B. data bus C. main memory D. none of the above Answer: Option A
In which of the following directory systems, is it possible to have multiple complete paths for a file starting from the
In which of the following directory systems, is it possible to have multiple complete paths for a file starting from the A. Single level directory B. Two level directory C. Tree structured director D. cyclic graph directory Answer: Option D
SATA stands for
SATA stands for A. Serial Advanced Technology Attachment B. Serious Advanced Technology Attachment C. Serial Advanced Technology Attach D. Serial Advanced Techno Attachment Answer: Option A
Fragmentation is
Fragmentation is A. fragments of memory words unused in a page B. fragments of memory words used in a page C. dividing the main memory into equal- sized fragments D. dividing the secondary memory into equal sized fragments Answer: Option…
Which of the following is suitable after you install new drivers?
Which of the following is suitable after you install new drivers? A. Shut Down B. Restart C. Sleep D. Hibernate Answer: Option B
When a peripheral device needs immediate attention from the operating system, it generates(n)
When a peripheral device needs immediate attention from the operating system, it generates(n) A. Interrupt B. Spool C. Stack D. Page file Answer: Option A