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Microprocessor MCQ

1. The cache usually gets its data from the_________ whenever the instruction or data is required by the CPU:

Main memory

Case memory

Cache memory

All of these

Answer

Correct Answer: Main memory

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2. Which is the small amount of high‐ speed memory used to work directly with the microprocessor:

Cache

Case

Cost

Coos

Answer

Correct Answer: Cache

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3. ________ is usually the first level of memory access by the microprocessor:

Cache memory

Data memory

Main memory

All of these

Answer

Correct Answer: Cache memory

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4. Which are the factor of cache memory:

Architecture of the microprocessor

Properties of the programs being executed

Ize organization of the cache

All of these

Answer

Correct Answer: All of these

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5. DIP stand for:

Deal inline package

Dual inline package

Direct inline package

Digital inline package

Answer

Correct Answer: Dual inline package

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6. The pin configuration of 8086 is available in the________:

40 pin

50 pin

30 pin

20 pin

Answer

Correct Answer: 40 pin

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7. The offset of a particular segment varies from _________:

000H to FFFH

0000H to FFFFH

00H to FFH

00000H to FFFFFH

Answer

Correct Answer: 0000H to FFFFH

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8. ________ is the most important segment and it contains the actual assembly language instruction to be executed by the microprocessor:

Data segment

Code segment

Stack segment

Extra segment

Answer

Correct Answer: Code segment

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9. NMI stand for:

Non mask able interrupt

Non mistake interrupt

Both

None of these

Answer

Correct Answer: Non mask able interrupt

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10. ALE stand for:

Address latch enable

Address light enable

Address lower enable

Address last enable

Answer

Correct Answer: Address latch enable

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11. SI stand for:

Stand index

Source index

Segment index

Simple index

Answer

Correct Answer: Source index

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12. DI stand for:

Destination index

Defect index

Definition index

Delete index

Answer

Correct Answer: Destination index

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13. BP stand for:

Bit pointer

Base pointer

Bus pointer

Byte pointer

Answer

Correct Answer: Base pointer

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14. EA stand for:

Effective address

Electrical address

Effect address

None of these

Answer

Correct Answer: Effective address

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15. The _______ address of a memory is a 20 bit address for the 8086 microprocessor:

Physical

Logical

Both

None of these

Answer

Correct Answer: Physical

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16. The size of each segment in 8086 is:

64 kb

24 kb

50 kb

16kb

Answer

Correct Answer: 64 kb

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17. How many type of addressing in memory:

Logical address

Physical address

Both A and B

None of these

Answer

Correct Answer: Both A and B

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18. How many bits the instruction pointer is wide:

16 bit

32 bit

64 bit

128 bit

Answer

Correct Answer: 16 bit

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19. The acculatator is 16 bit wide and is called:

Answer

Correct Answer: AX

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20. Which are the segment:

CS: Code segment

DS: data segment

SS: Stack segment

ES:extra segment

All of these

Answer

Correct Answer: All of these

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21. DS Stand for:

Data segment

Direct segment

Declare segment

Divide segment

Answer

Correct Answer: Data segment

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22. CS Stand for:

Code segment

Coot segment

Cost segment

Counter segment

Answer

Correct Answer: Code segment

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23. IP Stand for:

Instruction pointer

Instruction purpose

Instruction paints

None of these

Answer

Correct Answer: Instruction pointer

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24. The four index register can be used for:

Arithmetic operation

Multipulation operation

Subtraction operation

All of these

Answer

Correct Answer: Arithmetic operation

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25. Eight of the register are known as:

General‐ purpose register

Pointer or index registers

Segment registers

Other register

Answer

Correct Answer: General‐ purpose register

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26. Which are the four categories of registers:

General‐ purpose register

Pointer or index registers

Segment registers

Other register

All of these

Answer

Correct Answer: All of these

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27. EU STAND FOR:

Execution unit

Execute unit

Exchange unit

None of these

Answer

Correct Answer: Execution unit

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28. BIU STAND FOR:

Bus interface unit

Bess interface unit

A and B

None of these

Answer

Correct Answer: Bus interface unit

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29. The CPU removes the ___ signal to complete the memory write operation:

Read

Write

Both A and B

None of these

Answer

Correct Answer: Read

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30. The CPU sends out a ____ signal to indicate that valid data is available on the data bus:

Read

Write

Both A and B

None of these

Answer

Correct Answer: Write

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31. The lower red curvy arrow show that CPU places the address extracted from the memory location on the_____:

Address bus

System bus

Control bus

Data bus

Answer

Correct Answer: Address bus

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32. A microprocessor retries instructions from :

Control memory

Cache memory

Main memory

Virtual memory

Answer

Correct Answer: Main memory

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33. Which RAM is created using MOS transistors:

Dynamic RAM

Static RAM

Permanent RAM

SD RAM

Answer

Correct Answer: Dynamic RAM

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34. Which type of RAM needs regular referred:

Dynamic RAM

Static RAM

Permanent RAM

SD RAM

Answer

Correct Answer: Dynamic RAM

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35. Each memory location has:

Address

Contents

Both A and B

None of these

Answer

Correct Answer: Both A and B

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36. The RAM which is created using bipolar transistors is called:

Dynamic RAM

Static RAM

Permanent RAM

DDR RAM

Answer

Correct Answer: Static RAM

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37. Customized ROMS are called:

Mask ROM

Flash ROM

EPROM

None of these

Answer

Correct Answer: Mask ROM

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38. Secondary memory is also called____:

Auxiliary

Backup store

Both A and B

None of these

Answer

Correct Answer: Both A and B

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39. Secondary memory can store____:

Program store code

Compiler

Operating system

All of these

Answer

Correct Answer: All of these

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40. Which is the type of microcomputer memory:

Address

Contents

Both A and B

None of these

Answer

Correct Answer: Both A and B

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41. EPROM stands for:

Erasable Programmable read‐only memory

Electrically Programmable read write memory

Electrically Programmable read‐only memory

None of these

Answer

Correct Answer: Erasable Programmable read‐only memory

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42. PROM stands for:

Programmable read‐only memory

Programmable read write memory

Programmer read and write memory

None of these

Answer

Correct Answer: Programmable read‐only memory

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43. Which is not the control bus signal:

READ

WRITE

RESET

None of these

Answer

Correct Answer: RESET

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44. The processor 80386/80486 and the Pentium processor uses _____ bits address bus:

Answer

Correct Answer: 32

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45. The external system bus architecture is created using from ______ architecture:

Pascal

Dennis Ritchie

Charles Babbage

Von Neumann

Answer

Correct Answer: Von Neumann

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46. The data in the stack is called:

Pushing data

Pushed

Pulling

None of these

Answer

Correct Answer: Pushing data

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47. Which is used to store critical pieces of data during subroutines and interrupts:

Stack

Queue

Accumulator

Data register

Answer

Correct Answer: Stack

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48. BCD stands for:

Binary coded decimal

Binary coded decoded

Both a & b

None of these

Answer

Correct Answer: Binary coded decimal

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49. Name of typical dedicated register is:

All of these

Answer

Correct Answer: All of these

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50. There are primarily two types of register:

General purpose register

Dedicated register

A and B

None of these

Answer

Correct Answer: A and B

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51. A set of register which contain are:

Data

Memory addresses

Result

All of these

Answer

Correct Answer: All of these

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52. Accumulator based microprocessor example are:

Intel 8085

Motorola 6809

A and B

None of these

Answer

Correct Answer: A and B

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53. What is the store by register?

Data

Operands

Memory

None of these

Answer

Correct Answer: Data

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54. Which is the microprocessor comprises:

One or more ALU

Control unit

All of these

Answer

Correct Answer: All of these

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55. What does reducing chip count do to a company's total manufacturing costs?

No effect

Increases

Reduces

Has no effect

Answer

Correct Answer: Reduces

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56. What is an example of a chip designed for a specific, limited application?

Pen Plotter Adapter IC

Custom IC

Application Specific IC

System on Chip

Answer

Correct Answer: Application Specific IC

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57. What is another name for Application Specific IC?

ASIC

Platform IC

FPGA

System on a Chip

PLD

Answer

Correct Answer: ASIC

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58. What type of IC is more commonly used?

Mixed Use IC

Integrated Circuit

General Purpose IC

Application Specific IC

Universal Serial Bus IC

Answer

Correct Answer: Application Specific IC

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59. What does the Arithmetic and Logic Unit do to numbers?

It compares two numbers

It does long division

Convert numbers to percentages

Check for math errors

Arithmetic and logic operations

Answer

Correct Answer: Arithmetic and logic operations

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60. What is the unit responsible for doing arithmetic and logic on two n-bit numbers?

MAC Processor

Floating Point Unit

Bit Shift Unit

Arithmetic and Logic Unit

Answer

Correct Answer: Arithmetic and Logic Unit

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61. What is an example of a digital component that uses the term "logic" to describe its function?

Relay

Gate

Circuit

Processor

Answer

Correct Answer: Gate

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62. In what type of converter does voltage become a number?

Analog-to-Digital

Pulse Generator

Quadrature Amplifier

Digital-to-Analog

Answer

Correct Answer: Analog-to-Digital

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63. What is the function of a digital to analog converter?

Turns an analogue signal into a digital one

Changes digital information into an analog signal

Converts digital information into an analog signal

Transforms an analog voltage into its digital equivalent

Converts a digital signal into an analog format

Answer

Correct Answer: Transforms an analog voltage into its digital equivalent

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64. What kind of code is represented by the 8-bit American Standard Code for Information Interchange?

Binary codes

Alphanumeric codes

ASCII codes

Answer

Correct Answer: Alphanumeric codes

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65. What is the code used to represent alphanumeric codes?

ISO-3166

American Standard Code for Information Interchange

ISO-8859-1

European Standard Code for Information Interchange

Unicode

Answer

Correct Answer: American Standard Code for Information Interchange

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66. What is another name for ASCII?

American Standard Code for Interchange of Information

American Standard Code for Information Interchange - Extended

American Standard Code for Information Interchange - Basic

American Standard Code for Information Interchange

Answer

Correct Answer: American Standard Code for Information Interchange

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67. How many address pins are provided with a microprocessor chip?

One

The number of

A number that cannot be calculated

No pins are provided

No number is provided

Answer

Correct Answer: The number of

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68. What is the purpose of a memory location stored in a register?

To store the instruction that will be executed

To store the address

To store the data

To store the program counter

To store the data that will be executed

Answer

Correct Answer: To store the address

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69. The manner in which a microprocessor determines the effective address of source and destination operands in an instruction is called what?

Opcode

Data type

Instruction type

Mode of operation

Addressing mode

Answer

Correct Answer: Addressing mode

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70. What does "address specifies" mean?

The register or memory location of an operand involved in the instruction

The list of registers to which the instruction will write

The register number of an operand involved in the instruction

The register or memory location of an operand used in the operation

The register or memory location of the result of the instruction

Answer

Correct Answer: The register or memory location of an operand involved in the instruction

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71. What is a data locator?

A unique identification number

A software program that helps investigators find evidence

A code assigned to a specific file

A location

A program

Answer

Correct Answer: A unique identification number

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72. What kind of operation can be stored in an Accumulator?

Double precision floating point operations

Bit operations

Special register operations

ALU operations

Memory operations

Answer

Correct Answer: ALU operations

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73. What do accumulators store after most ALU operations?

Zero

Carry

Result

Answer

Correct Answer: Result

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74. What is the absolute addressing mode used for?

Specifies the start and end of data within a block

Specifies the address of data

Specifies the relative addressing mode

Increments the address of data by 1

Indicates a named range

Answer

Correct Answer: Specifies the address of data

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75. What does describing a data address with an instruction mean?

Absolute Addressing

Relative Addressing

Indirect Addressing

Answer

Correct Answer: Absolute Addressing

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76. What did the Pentium 3 replace?

Pentium MMX

Pentium I

Pentium 4

Pentium II

Answer

Correct Answer: Pentium MMX

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77. What is also known as the Pentium MMX?

Pentium II - Released in 1995

Pentium - Also see the Pentium MMX

Pentium III - Released 1997

Pentium II

Pentium- 150

Answer

Correct Answer: Pentium - Also see the Pentium MMX

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78. What is a PCB the base for?

Surface-mounted and socketed components

Circuit boards

A printed circuit board

Printed circuit boards

A computer chip

Answer

Correct Answer: Surface-mounted and socketed components

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79. What is the main function of a PCB?

Wiring surface-mounted and socketed components

Acting as a heatsink for electronic components

Supporting graphics and controls

Acting as a platform for electronic components

Providing a thermal interface between the CPU and chipset

Answer

Correct Answer: Wiring surface-mounted and socketed components

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80. The PowerPC was developed by whom?

Intel, AMD, and Fujitsu

Apple, IBM, and Intel

Microsoft and Apple

Apple, IBM, and Motorola

IBM, Apple, and Motorola

Answer

Correct Answer: Apple, IBM, and Motorola

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81. Along with Apple and IBM, what company developed the PowerPC?

AMD

Intel

Motorola

Answer

Correct Answer: Motorola

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82. What is a power-on reset?

A button on a printer

The act of turning a power off and then back on

A reset button on a computer

A circuit that provides a predictable, regulated voltage

A signal that resets a computer

Answer

Correct Answer: A circuit that provides a predictable, regulated voltage

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83. What can give a predictable, regulated voltage to a microprocessor or microcontroller?

A falling voltage

A software reset

A rising voltage

A power-off reset

A power-on reset

Answer

Correct Answer: A power-on reset

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84. What are the Microchip Technology PIC microcontrollers?

A type of computer memory

A family of specialized microcontroller chips

A type of computer microprocessor

A set of software tools for controlling embedded devices

A handheld game console

Answer

Correct Answer: A family of specialized microcontroller chips

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85. Where are Microchip Technology's factory?

Massachusetts

Chandler, Arizona

China

Texas

Malaysia

Answer

Correct Answer: Chandler, Arizona

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86. What is the standard method used for PCB and microprocessor fabrication?

Laser cutting

Screen printing

Lithography

CNC machining

EMI screening

Answer

Correct Answer: Lithography

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87. What is the standard method of PCB and microprocessor fabrication?

Photolithography

Directed energy lithography

Vacuum evaporation

Electron beam lithography

Ink-jet printing

Answer

Correct Answer: Photolithography

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88. What is a petaflop of a computer's processing speed expressed as?

Million

Trillion

Billion

Quadrillion

Answer

Correct Answer: Quadrillion

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89. What is a measure of a computer's processing speed?

Gigahertz

Petaflop

Megahertz

Answer

Correct Answer: Petaflop

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90. When was the PDP-11 manufactured?

1960s through the early 2000s

1920s through the 1940s

1960s through the mid-1990s

1940s through the early 1960s

Late 1970s through the early 1990s

Answer

Correct Answer: 1960s through the mid-1990s

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91. In what decade was the PDP-11 manufactured?

1960s

1970s

1980s

Answer

Correct Answer: 1960s

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92. What was the name of the DEC series that the PDP-11 was a part of?

VAX

PDP-11

11-inch PDP-11

Digital Equipment Corporation

Answer

Correct Answer: Digital Equipment Corporation

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93. Overclocking is resetting what so that it runs faster than the specified speed?

The processor

Processor

Motherboard

Some computer component

The operating system

Answer

Correct Answer: Some computer component

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94. Overclocking is resetting some computer component so that it runs faster than what?

The processor's rated speed

The default clock speed

The maximum clock speed

The operating system's default speed

The manufacturer-specified speed

Answer

Correct Answer: The manufacturer-specified speed

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95. What is an action that is carried out to accomplish a given task?

A project

A deliberation

A plan

An operation

Answer

Correct Answer: An operation

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96. What is an operation?

The act of reproducing

Substance that is extracted from a plant

Part of a machine

A system that comprises parts or elements

Action that is carried out

Answer

Correct Answer: Action that is carried out

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97. An operation is an action that is carried out to accomplish what?

A given task

To achieve a specific end

To achieve a desired result

To fix an issue

To complete a procedure

Answer

Correct Answer: A given task

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98. What is an IC that contains eight binary digital circuits called?

Hex bus

Octal bus

Decimal latch

Binary counter

Octal latch

Answer

Correct Answer: Octal latch

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99. How many binary digital circuits are present in an octal latch?

Six

Four

Eight

Answer

Correct Answer: Eight

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100. What does the Accelerated Graphics Port do?

Outputs video to a monitor

Improves performance in graphics-intensive applications

Controls interaction with memory

Increases performance for graphics-intensive tasks

Answer

Correct Answer: Controls interaction with memory

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101. What does the AGP stand for?

Advanced Graphics Port

Advanced Graphics Processor

Automatic Gear Shift

Accelerated Graphics Port

Agriculture Grants Program

Answer

Correct Answer: Accelerated Graphics Port

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102. What is a neurosynaptic chip also known as?

Cognitive chip

Memory chip

Processor chip

Sensory chip

Answer

Correct Answer: Cognitive chip

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103. What is an example of a neuromorphic chip?

A computer

An analog data processor

A neural network chip

A digital data processor

Answer

Correct Answer: An analog data processor

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104. What does a neuromorphic chip do?

Digital data processor

Analog data processor

Stores and retrieves information

Processes data in real time

Central processing unit

Answer

Correct Answer: Analog data processor

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105. What is a neuromorphic chip?

A silicon chip specifically designed to emulate human brain activity

A computer chip that uses artificial intelligence

A development in semiconductor technology that makes chips more like the brain

A chip that mimics the electrical activity of the brain

An analog data processor inspired by the biological brain

Answer

Correct Answer: An analog data processor inspired by the biological brain

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Instrumentation Engineering MCQs | Topic-wise

MCQ on Basic Instrumentation Engineering	MCQ on CSC (Control Systems something)
MCQ on Digital Control Systems	MCQ on Microprocessor
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CSC (Control Systems something) MCQs

Digital Control Systems MCQs

Basic Instrumentation Engineering MCQs

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