8086 Microprocessor Questions

MCQ bookmark_border

101.

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

A

1,048,576 locations

B

2,097,152 locations

C

4,194,304 locations

D

8,388,608 locations

Correct Answer: A

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

102.

Which of the following is not an arithmetic instruction?

A

INC (increment)

B

CMP (compare)

C

DEC (decrement)

D

ROL (rotate left)

Correct Answer: D

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

103.

During a read operation the CPU fetches ________

A

a program instruction

B

another address

C

data itself

D

all of the above

Correct Answer: D

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

104.

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

A

Code segment (CS)

B

Data segment (DS)

C

Stack segment (SS)

D

Address segment (AS)

Correct Answer: D

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

105.

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

A

8085

B

8086

C

8087

D

8088

Correct Answer: D

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

106.

Which group of instructions do not affect the flags?

A

Arithmetic operations

B

Logic operations

C

Data transfer operations

D

Branch operations

Correct Answer: C

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

107.

The result of MOV AL, 65 is to store

A

store 0100 0010 in AL

B

store 42H in AL

C

store 40H in AL

D

store 0100 0001 in AL

Correct Answer: D

Check Answer report_problem Report forum Discussion