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. Four necessary conditions for deadlock are non pre-emption, circular wait, hold and wait and

mutual exclusion
race condition
buffer overflow
None of above

Answer: Option A

2. A series of statements explaining how the data is to be processed is called

instruction
compiler
program
interpretor

Answer: Option C

3. 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

4. Shortest Job First executes first the job

with the least processor needs
that first entered the queue
that has been in the queue for the longest
that last entered the queue

Answer: Option A

5. Memory protection is normally done by

the processor and the associated hardware
the operating system
the compiler
the user program

Answer: Option A

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