year mcqs

2009

The instruction LOAD A is a

a) zero address instruction     b) one address instruction

c) two address instruction       d) three address instruction.

The purpose of cache memory in a computer is to

a) ensure fast booting          b) reduce load on CPU registers

c) replace static memory     d) speed up memory access.

Object code is

a) input to assembler    b) output of assembler

c) intermediate code     d) none of these.

Which of the following is not an advantage of Dynamic RAMs ?

a) High density     b) Low cost

c) High speed       d) No need of memory refresh.

DMA module can communicate with CPU through

a) interrupt                    b) cycle stealing

c) branch instruction     d) none of these.

The number of fetch operation(s) to execute instruction in immediate mode is

a) 0     b) 1

c) 2     d) none of these.

A CPU has 16 bit program counter(PC). This means CPU can address

a) 16K     b) 32K

c) 64K     d) 256K memory locations.

The major objective in choosing page replacement policy is to

a) minimize hit ratio      b) reduce size of page

c) maximize hit ratio     d) none of these.

The sum of ( 24D ) 16 and ( 9 AA ) 16 is

a) ( BE7 ) 16      b) ( BE6 ) 16

c) ( AF7 ) 16       d) ( BE7 ) 16 .

In a stack computer, there is support for

a) PUSH and POP instruction only

b) zero address instruction only

c) zero address instructions, PUSH and POP

d) none of these.