operating system set 6 Detailed Explanation And More Example

Question : 1

In memory management where replacement is allowed in First-in-First-out (FIFO) fashion

a) The page frames are allocated to a process as circular buffer and pages are removed in random order.

b) The page frames are allocated to a process as circular buffer and pages are removed in round-robin order.

c) Replaces the pages that are least referred.

d) Replaces the pages that are most referred.

Question : 2

Thrashing

a) the high paging activity

b) is spending more time in paging than executing

c) both A and B above

d) none of the above

Question : 3

In which of the following RAID scheme, redundancy is achieved by the simple expedient of duplicating all the data ?

a) RAID level 0

b) RAID level 1

c) RAID level 2

d) RAID level 3

Question : 4

Memory buffer register (MBR) contains

a) Data that is to be written into memory

b) A particular I/O device.

c) Exchange data between I/O module and the processor.

d) The instruction most recently fetched.

Question : 5

Compile time

a) where the process will reside in memory, then absolute code can be generated

b) where the process will reside in memory, then the compiler must generate relocatable code

c) if the process can be moved during its execution from one memory segment to another,the binding must be delayed until run time

d) all of the above

Question : 6

A task in a blocked state is

a) Executable

b) Waiting for some temporarily unavailable resource

c) Running

d) None of these