Question Detail

Reference bit is used for

Implementing LRU page replacement algorithm
Implementing NRU algorithm
To check the page table entry in the cache memory
none of above

Answer: Option B

Similar Questions :

1. Root directory of a disk should be placed

at the fixed address in the main memory
at a fixed location on the disk
at the fixed location on system disk
anywhere on the disk

Answer: Option B

2. Fragmentation of a file system

occurs only is file is not used properly
can always be prevented
happens in all file systems
can be removed by compaction

Answer: Option B

3. What is the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer user's productivity?

Defined values
Fixed values
Default values
None of the above

Answer: Option C

4. Which scheduling policy is best suited for time-sharing operating systems

Shortest job first
Round robin
First come first serve
Elevator

Answer: Option B

5. Disk scheduling includes deciding

which should be accessed next
order in which disk access requests must be serviced
the physical location of the file
the logical location of the file

Answer: Option B

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