QUESTION 1

What is Binary equivalent to (53.25)₁₀?

a.

110101.11

b.

110101.01

c.

10111.11

d.

10111.01

1 points

QUESTION 2

What is Hexadecimal equivalent to (234567)₈?

a.

234567₁₆

b.

4EBBC₁₆

c.

13977₁₆

d.

4EBB3₁₆

1 points

QUESTION 3

In J-K flip-flop, if J=1 and K=1 then the operation will be _____________.

a.

Reset.

b.

Toggle.

c.

Set.

d.

Memory.

1 points

QUESTION 4

A multiplexer is a device that connects __________________________.

a.

Multiple input lines to a single output line.

b.

Single input line to a single output line.

c.

Multiple input lines to multiple output lines.

d.

Single input line to multiple output lines.

1 points

QUESTION 5

Which of the following records data in serial fashion?

a.

Compact Disk.

b.

Random Access Memory

c.

Digital Versatile Disk.

d.

Magnetic Tape.

1 points

QUESTION 6

Which of the following is used for cache memory?

a.

Flash Memory.

b.

DRAM.

c.

SRAM.

d.

PROM.

1 points

QUESTION 7

Which of the following cache replacement algorithm that replaces the block in the set that has been in the cache longest with no reference to it?

a.

LFU

b.

LRU

c.

FIFO

d.

LIFO

1 points

QUESTION 8

Keyboards and printers are examples of ____________ external devices.

a.

communication

b.

control

c.

machine readable

d.

human readable

1 points

QUESTION 9

In ____________ technique, when the processor issues a command to the I/O module, it continues to execute other instructions, and is interrupted by the I/O module when the latter has completed its work.

a.

Direct memory access (DMA)

b.

Interrupt-driven I/O

c.

Random memory access

d.

Programmed I/O

1 points

QUESTION 10

Which of the following is NOT true about the Assembly language?

a.

Assembly language is easier for humans than machine language.

b.

A program called an assembler translates assembly language into machine language.

c.

Mnemonics are used for the instructions.

d.

Design of the processor is not concerned.

1 points

QUESTION 11

In ____________, operand is contained in a register which is specified in the instruction.

a.

Stack Addressing

b.

Direct Addressing

c.

Register Addressing

d.

Immediate Addressing

1 points

QUESTION 12

Which of the following Assembly instructions copy the content of a memory location to the accumulator?

a.

LXI

b.

STA

c.

OUT

d.

LDA

1 points

QUESTION 13

Which of the following Assembly language instruction calls the SUB subroutine if the zero flag status is 1?

a.

COZ SUB

b.

CALL SUB

c.

CNZ SUB

d.

CZ SUB

1 points

QUESTION 14

_______________ is a processor with a shared L3 cache.

a.

please fast i will rate you