Computer Architecture Test Online

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Question 1

1. Which unit performs arithmetic and logical operations?

Answer

Control Unit

Answer

Input Unit

Answer

Memory Unit

Question 2

2. Which of the following memory types is the smallest and fastest?

Answer

Main memory

Answer

Cache memory

Answer

Secondary memory

Question 3

3. Which register holds the address of the next instruction to be executed?

Answer

Accumulator

Answer

Stack Pointer

Answer

Instruction Register

Answer

Program Counter

Question 4

4. What is the function of the Control Unit in the CPU?

Answer

Store data

Answer

Perform calculations

Answer

Control data flow and coordinate CPU operations

Answer

Display results

Question 5

5. What does the term ‘clock speed’ of a processor indicate?

Answer

Size of ROM

Answer

Screen resolution

Answer

Number of instructions executed per second

Answer

Memory size

Question 6

6. Which memory is used to start a computer?

Question 7

7. Which of the following is called the brain of the computer?

Question 8

8. Which part of the computer executes instructions?

Question 9

9. Which register is used to manage subroutine calls and returns?

Answer

Accumulator

Answer

Program Counter

Answer

Instruction Register

Answer

Stack Pointer

Question 10

10. What is the function of the bus interface unit in CPU architecture?

Answer

Display graphics

Answer

Control mouse pointer

Answer

Communicate with memory and I/O devices

Answer

Send signals to the speaker

Question 11

11. What does RISC stand for?

Answer

Read Instruction Sequentially and Continuously

Answer

Random Instruction Storage Chip

Answer

Reliable Instruction System Control

Answer

Reduced Instruction Set Computer

Question 12

12. Which of the following is used to increase the performance of the CPU?

Answer

Large monitor

Answer

Cache Memory

Question 13

13. Which of the following describes CISC?

Answer

Compressed Instruction System

Answer

Cache Integrated Set Control

Answer

Common Instruction Storage Chip

Answer

Complex Instruction Set Computer

Question 14

14. What is the main function of registers in a CPU?

Answer

Store large data

Answer

Control system functions

Answer

Display data

Answer

Temporarily store data and instructions

Question 15

15. What is pipelining in CPU design?

Answer

Water-cooling for CPU

Answer

Memory management technique

Answer

Technique for parallel instruction execution

Answer

Data compression technique

Question 16

16. Which memory stores data temporarily and is erased when power is off?

Question 17

17. What is a multiprocessor system?

Answer

A computer with two or more processors

Answer

A system with extra RAM

Answer

A computer with a large monitor

Answer

A system with multiple printers

Question 18

18. Which of the following components is used for temporary, high-speed data storage?

Question 19

19. What is the role of the address bus?

Answer

Specify memory location to access

Answer

Connect CPU to mouse

Answer

Carry data from CPU to memory

Answer

Carry control signals

Question 20

20. Which of the following is an example of primary memory?

Answer

Flash Drive

Question 21

21. Which bus is used to carry data between components?

Answer

Address bus

Answer

Control bus

Answer

System bus

Question 22

22. What is a system bus?

Answer

Collection of data, address, and control buses

Answer

Bus used in LAN

Answer

Bus connecting external devices

Answer

Bus only for printers

Question 23

23. What is the function of the memory management unit (MMU)?

Answer

Handling memory access and protection

Answer

Increasing CPU speed

Answer

Power supply control

Answer

Managing input devices

Question 24

24. Which of the following controls the flow of data in a CPU?

Answer

Control Unit

Question 25

25. Which of these terms refers to storing frequently used instructions?

Question 26

26. Which component is responsible for decoding the instruction?

Question 27

27. What is meant by instruction cycle?

Answer

The time to install an OS

Answer

The sequence of steps to fetch and execute instructions

Answer

The process of converting data to signals

Answer

A loop in a program

Question 28

28. Which part of the CPU performs comparison operations?

Question 29

29. Which of the following best describes instruction pipelining?

Answer

Instruction looping

Answer

Overlapping instruction execution

Answer

Increasing cache size

Answer

Repeating instructions

Question 30

30. Which register holds the instruction currently being executed?

Answer

Instruction Register

Answer

Data Register

Answer

Stack Pointer

Answer

Program Counter

Question 31

31. Which of the following operations is not performed by the ALU?

Answer

Instruction decoding

Answer

Subtraction

Answer

Logical comparison

Question 32

32. What is the key difference between CISC and RISC?

Answer

CISC uses few instructions

Answer

RISC uses complex instructions

Answer

RISC uses microcode

Answer

CISC supports large and complex instruction sets

Question 33

33. What is the main role of the input unit in computer architecture?

Answer

Store files

Answer

Process data

Answer

Enter data and instructions into the computer

Answer

Perform calculations

Question 34

34. What does the term 'throughput' mean in computer architecture?

Answer

Speed of monitor refresh

Answer

Amount of data processed in a given time

Answer

Power consumed by CPU

Answer

Number of programs running

Question 35

35. Which of these determines the instruction execution time?

Answer

Monitor refresh rate

Answer

Clock cycle

Answer

Hard disk speed

Question 36

36. Which architecture uses a single memory for instructions and data?

Answer

Von Neumann

Question 37

37. Which of the following is used to increase processing speed?

Answer

Fewer registers

Answer

Disk fragmentation

Answer

Parallel processing

Question 38

38. Which of the following is not a type of computer memory?

Question 39

39. Which of the following is used to reduce the CPU's time waiting for data?

Answer

Cache Memory

Question 40

40. Which architecture uses load/store instructions to access memory?

Answer

Von Neumann

Question 41

41. Which of the following stores data permanently?

Question 42

42. Which register is used for arithmetic and logic operations?

Answer

Stack Pointer

Answer

Accumulator

Answer

Instruction Register

Answer

Program Counter

Question 43

43. Which type of memory is volatile?

Question 44

44. Which component controls the execution of instructions?

Answer

Control Unit

Question 45

45. What does 'fetch' mean in the instruction cycle?

Answer

Calculate the answer

Answer

Send data to the printer

Answer

Bring the instruction from memory to CPU

Answer

Store the output

Question 46

46. Which of the following architectures separates data and instruction memory?

Answer

Von Neumann

Question 47

47. What does the acronym 'ISA' stand for in computer architecture?

Answer

Instruction Set Architecture

Answer

Internal System Architecture

Answer

Input Signal Arrangement

Answer

Integrated Storage Architecture

Question 48

48. Which of the following is not a characteristic of RISC architecture?

Answer

Fewer addressing modes

Answer

Load/store architecture

Answer

Fixed-length instructions

Answer

Large instruction set

Question 49

49. What is a micro-operation?

Answer

Starting the computer

Answer

A basic operation on data stored in a register

Answer

Complex arithmetic operation

Answer

Execution of a large software

Question 50

50. Which of the following is the fastest memory?

Question 51

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Total Questions:	50
Time Allowed:	25 Minutes
Total Marks:	50
How to Attempt Test:	Please choose the right Option in MCQ-type question.
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Important Computer Architecture Question and Answer

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