operating system Practice Questions Answers Test with Solutions & More Shortcuts

Question : 36

In I/O management when buffering is allowed then : Statement A: Input transfer is performed before request is made. Statement B: Output transfer is performed after request is made. Statement A and B are both true

a) Statement A and B are both false

b) Statement A is true but Statement B is false

c) Statement B is true but statement A is false.

d) None of these.

Question : 37

The principal function of a process is

a) To execute machine instructions residing in main memory.

b) To execute assembly instructions residing outside main memory.

c) A and B both true.

d) A and B both false.

Question : 38

The memory allocation scheme subject to external fragmentation is

a) segmentation

b) swapping

c) pure demand paging

d) multiple contiguous fixed partitions

Question : 39

Processor in computer

a) Controls the operations of the computer/ processes data functions.

b) Stores data and program.

c) Moves data between computer and its external environment.

d) None of these.

Question : 40

Process is

a) a program in high level language kept on disk

b) contents of main memory

c) a program in execution

d) a job in secondary memory