Test: Basic Operational Concept

QUESTION: 1

The decoded instruction is stored in ______

A.
IR
B.
PC
C.
Registers
D.
MDR

Solution:

Answer: a
Explanation: The instruction after obtained from the PC, is decoded and operands are fetched and stored in the IR.

QUESTION: 2

The instruction -> Add LOCA, R0 does _______

A.
Adds the value of LOCA to R0 and stores in the temp register
B.
Adds the value of R0 to the address of LOCA
C.
Adds the values of both LOCA and R0 and stores it in R0
D.
Adds the value of LOCA with a value in accumulator and stores it in R0

Solution:

QUESTION: 3

Which registers can interact with the secondary storage?

A.
MAR
B.
PC
C.
IR
D.
R0

Solution:

Answer: a
Explanation: MAR can interact with secondary storage in order to fetch data from it.

QUESTION: 4

During the execution of a program which gets initialized first ?

A.
MDR
B.
IR
C.
PC
D.
MAR

Solution:

Answer: c
Explanation: For the execution of a process first the instruction is placed in the PC.

QUESTION: 5

Which of the register/s of the processor is/are connected to Memory Bus ?

A.
PC
B.
MAR
C.
IR
D.
Both PC and MAR

Solution:

Answer: b
Explanation: MAR is connected to the memory BUS in order to access the memory

QUESTION: 6

ISP stands for _________

A.
Instruction Set Processor
B.
Information Standard Processing
C.
Interchange Standard Protocol
D.
Interrupt Service Procedure

Solution:

QUESTION: 7

The internal Components of the processor are connected by _______

A.
Processor intra-connectivity circuitry
B.
Processor bus
C.
Memory bus
D.
Rambus

Solution:

Answer: b
Explanation: The processor BUS is used to connect the various parts in order to provide a direct connection to the CPU.

QUESTION: 8

______ is used to choose between incrementing the PC or performing ALU operations.

A.
Conditional codes
B.
Multiplexer
C.
Control unit
D.
None of the mentioned

Solution:

Answer: b
Explanation: The multiplexer circuit is used to choose between the two as it can give different results based on the input.

QUESTION: 9

The registers,ALU and the interconnection between them are collectively called as _____

A.
process route
B.
information trail
C.
information path
D.
data path

Solution:

Answer: d
Explanation: The Operational and processing part of the CPU are collectively called as data path.

QUESTION: 10

_______ is used to store data in registers.

A.
D flip flop
B.
JK flip flop
C.
RS flip flop
D.
None of the mentioned

Solution:

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10 Questions MCQ Test Computer Architecture & Organisation (CAO) | Test: Basic Operational Concept

The decoded instruction is stored in ______

The instruction -> Add LOCA, R0 does _______

Which registers can interact with the secondary storage?

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