Computer Organization and Architecture Online Test 2 – Randomized MCQs

With each visit of this Computer Organization and Architecture online Quiz / Practice Test, the list of MCQs / Objective Questions presented will be different, offering you a diverse set of practice opportunities. This variability encourages you to practice extensively, refining the accuracy of your answers and your overall grasp of the content. By utilizing this resource, you can hone your skills and become more adept at managing time constraints during actual exams.

Test Instructions
Question type	Randomized MCQs.Changes every time you visit the test
Total Number of Questions	30
Time Limit	20 Minutes
Points	1 Point for each Question

Remaining Time: 0 MINUTES

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Question 1 of 30

Q-1.When a subroutine is called, the address of the instruction following the CALL instructions stored in/on the

stack pointer

accumulator

program counter

stack

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Question 2 of 30

Q-2.Bug means

A logical error in a program

Documenting programs using an efficient Documentation too

A difficult syntax error in a program

None of the above

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Question 3 of 30

Q-3.SIMD represents an organization that ______________

refers to a computer system capable of processing several programs at the same time.

represents organization of single computer containing a control unit, processor unit and a memory unit.

includes many processing units under the supervision of a common control unit

none of the above.

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Question 4 of 30

Q-4.Assembly language

uses alphabetic codes in place of binary numbers used in machine language

is the easiest language to write programs

need not be translated into machine language

None of these

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Question 5 of 30

Q-5.A complete microcomputer system consists of

microprocessor

memory

peripheral equipment

all of above

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Question 6 of 30

Q-6.The language that the computer can understand and execute is called ______

Machine language

Application software

System program

None of the above

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Question 7 of 30

Q-7.The Central Processing Unit:

is operated from the control panel.

is controlled by the input data entering the system

controls the auxiliary storage unit

controls all input, output and processing.

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Question 8 of 30

Q-8.An n-bit microprocessor has

n-bit program counter

n-bit address register

n-bit ALU

n-bit instruction register

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Question 9 of 30

Q-9.A device/circuit that goes through a predefined sequence of states upon the application of input pulses is called

flip-flop

transistor

counter

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Question 10 of 30

Q-10.Half adder is logic CKT that adds. ………Digit at a time

Two

one

three

zero

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Question 11 of 30

Q-11.Which of the following interrupt is non maskable

INTR

RST 7.5.

RST 6.5.

TRAP.

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Question 12 of 30

Q-12.Virtual memory consists of

Static RAM

Dynamic RAM

Magnetic memory

None of these

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Question 13 of 30

Q-13.Self-contained sequence of instructions that performs a given computational task is called

Function

Procedure

Subroutine

Routine

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Question 14 of 30

Q-14._________ register keeps tracks of the instructions stored in program stored in memory

AR (Address Register)

XR (Index Register)

PC (Program Counter)

AC (Accumulator)

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Question 15 of 30

Q-15.MRI indicates

Memory Reference Information.

Memory Reference Instruction.

Memory Registers Instruction.

Memory Register information

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Question 16 of 30

Q-16.The idea of cache memory is based

on the property of locality of reference

on the heuristic 90-10 rule

on the fact that references generally tend to cluster

all of the above

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Question 17 of 30

Q-17.WAN hardware includes

Multiplexors and routers

EDF

Bridger and modems

None of the above

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Question 18 of 30

Q-18.Memory address refers to the successive memory words and the machine is called as …………

word addressable

byte addressable

bit addressable

Tera byte addressable

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Question 19 of 30

Q-19.Execution of two or more programs by a single CPU is known as :

Multiprocessing

Time sharing

Multiprogramming

None of the above

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Question 20 of 30

Q-20.A floppy disk contains

Circular tracks only

Sectors only

Both circular tracks and sectors

None of the above

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Question 21 of 30

Q-21.CPU fetches the instruction from memory according to the value of

program counter

status register

instruction register

program status word

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Question 22 of 30

Q-22.Which of the following is lowest in memory hierarchy?

Cache memory

Secondary memory

Registers

RAM

None of these

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Question 23 of 30

Q-23.Which of the following is not a weighted code?

Decimal Number system

Excess 3-cod

Binary number System

None of these

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Question 24 of 30

Q-24.Which of the following does not represent on I/O device

ALU

speaker which beeps

joystick

plotter

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Question 25 of 30

Q-25.Cache memory-

has greater capacity than RAM

is faster to access than CPU Registers

is permanent storage

faster to access than RAM

None of these

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Question 26 of 30

Q-26.Data hazards occur when ……

Greater performance loss

Pipeline changes the order of read/write access to operands

Some functional unit is not fully pipelined

Machine size is limited

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Question 27 of 30

Q-27.The errors that can be pointed out by the compiler are

Syntax errors

Semantic errors

Logical errors

None of the above

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Question 28 of 30

Q-28.The main memory in a Personal Computer (PC) is made of

cache memory

static RAM

Dynamic Ram

both (A) and (B)

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Question 29 of 30

Q-29.Microinstructions are stored in control memory groups, with each group specifying a

Routine

Subroutine

Vector

Address

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Question 30 of 30

Q-30.Magnetic tapes are good storage media for

backup and low volume data

backup and high volume data

storing original but low volume data

storing original but high volume data

Your Answer:Correct

Your Answer:Incorrect

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