Computer Organization & Architecture MCQ Questions Answers CSE Engineering

11) How many 128 x 8 bit RAMs are required to design 32K X 32 bit RAM?
a) 512

b) 128

c) 1024

d) 32

View Answer
Option – c)

12) The most relevant addressing mode to write position-independent codes is

a) direct mode

b) indirect mode

c) relative mode

d) indexed mode

View Answer
Option – a)

13) Which memory is difficult to interface with processor?

a) static memory

b) dynamic memory

c) ROM

d) RAM

View Answer
Option – b)

14) Which of the following is not involved in a memory write operation?

a) MAR

b) PC

C)  MDR

d) data bus

View Answer
Option – b)

15) A system which has lot crashes, data should be written to be disk using

a) write-through

b) write-back

c) both of the above

d) none of the above

View Answer
Option – b)

16) Which of the following holds data and processing instructions temporarily unit the CPU needs it?

a) ROM

b) control unit

c) main memory

d) coprocessor chips

View Answer
Option – c)

17) Address mode is_______

a) explicitly specified

b) implied by the instruction

c) both a and b

d) neither a nor b

View Answer
Option – c)

18) Which of the following affects processing power?

a) data bus capacity

b) addressing scheme

c) clock speed

d) all of the above

View Answer
Option – d)

19) Both the arithmetic logic unit (ALU) and control selection of CPU employ special purpose storage locations called

a) decoders

b) buffers

c) multiplexer

d) registers

View Answer
Option – d)

20) Which memory unit has lowest access time?

a) cache

b) registers

c) magnetic disk

d) main memory

View Answer
Option – b)

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