Microprocessor and Microcontroller MCQ Multiple Choice Questions

Q: 93. A 20-bit address bus can locate ________

Correct Answer is: 1,048,576 locations

Q: 94. Which of the following is not an arithmetic instruction?

Correct Answer is: ROL (rotate left)

Q: 95. During a read operation the CPU fetches ________

Correct Answer is: all of the above

Q: 96. Which of the following is not an 8086/8088 general-purpose register?

Correct Answer is: Address segment (AS)

Q: 99. Which group of instructions do not affect the flags?

Correct Answer is: Data transfer operations

Q: 100. The result of MOV AL, 65 is to store

Correct Answer is: store 0100 0001 in AL

91. Which is not an operand?

Variable
Register
Memory location
Assembler

92. Which is not part of the execution unit (EU)?

Arithmetic logic unit (ALU)
Clock
General registers
Flags

93. A 20-bit address bus can locate ________

1,048,576 locations
2,097,152 locations
4,194,304 locations
8,388,608 locations

94. Which of the following is not an arithmetic instruction?

INC (increment)
CMP (compare)
DEC (decrement)
ROL (rotate left)

95. During a read operation the CPU fetches ________

a program instruction
another address
data itself
all of the above

96. Which of the following is not an 8086/8088 general-purpose register?

Code segment (CS)
Data segment (DS)
Stack segment (SS)
Address segment (AS)

97. A 20-bit address bus allows access to a memory of capacity

1 MB
2 MB
4 MB
8 MB

98. Which microprocessor accepts the program written for 8086 without any changes?

8085
8086
8087
8088

99. Which group of instructions do not affect the flags?

Arithmetic operations
Logic operations
Data transfer operations
Branch operations

100. The result of MOV AL, 65 is to store

store 0100 0010 in AL
store 42H in AL
store 40H in AL
store 0100 0001 in AL

Microprocessor and Microcontroller MCQ Multiple Choice Questions - Page 7 for Practice

Microprocessor and Microcontroller MCQ Questions for Practice

91. Which is not an operand?

92. Which is not part of the execution unit (EU)?

93. A 20-bit address bus can locate ________

94. Which of the following is not an arithmetic instruction?

95. During a read operation the CPU fetches ________

96. Which of the following is not an 8086/8088 general-purpose register?

97. A 20-bit address bus allows access to a memory of capacity

98. Which microprocessor accepts the program written for 8086 without any changes?

99. Which group of instructions do not affect the flags?

100. The result of MOV AL, 65 is to store

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Microprocessor and Microcontroller MCQ Multiple Choice Questions - Page 7 for Practice

Microprocessor and Microcontroller MCQ Questions for Practice

91. Which is not an operand?

92. Which is not part of the execution unit (EU)?

93. A 20-bit address bus can locate ________

94. Which of the following is not an arithmetic instruction?

95. During a read operation the CPU fetches ________

96. Which of the following is not an 8086/8088 general-purpose register?

97. A 20-bit address bus allows access to a memory of capacity

98. Which microprocessor accepts the program written for 8086 without any changes?

99. Which group of instructions do not affect the flags?

100. The result of MOV AL, 65 is to store

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