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Welcome to the 80286 80287 Microprocessor MCQs Page

Dive deep into the fascinating world of 80286 80287 Microprocessor with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of 80286 80287 Microprocessor, a crucial aspect of Microprocessor. In this section, you will encounter a diverse range of MCQs that cover various aspects of 80286 80287 Microprocessor, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Microprocessor.

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Check out the MCQs below to embark on an enriching journey through 80286 80287 Microprocessor. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Microprocessor.

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80286 80287 Microprocessor MCQs | Page 3 of 19

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Q21.
Which of the following is not an interrupt generated by 80286?

a.

software interrupts

b.

hardware or external interrupts

c.

INT instruction

d.

All are generated by 80286

Discuss
Answer: (d).All are generated by 80286
Q22.
For which of the following instruction does the return address point to instruction causing exception?

a.

divide error exception

b.

bound range exceeded exception

c.

invalid opcode exception

d.

all of the mentioned

Discuss
Answer: (d).all of the mentioned
Q23.
The instruction that comes into action, if the trap flag is set is

a.

maskable interrupt

b.

non-maskable interrupt

c.

single step interrupt

d.

breakpoint interrupt

Discuss
Answer: (c).single step interrupt
Q24.
The interrupt that has the highest priority among the following is

a.

single step

b.

NMI (non-maskable interrupt)

c.

INTR

d.

instruction exception

Discuss
Answer: (d).instruction exception
Q25.
The interrupt that has the lowest priority among the following is

a.

processor extension segment overrun

b.

INTR

c.

INT instruction

d.

NMI

Discuss
Answer: (c).INT instruction
Q26.
The 80386 Microprocessor family is a _____ bit microprocessor.

a.

8

b.

16

c.

32

d.

64

Discuss
Answer: (c).32
Q27.
In which year, 80386 microprocessor was introduced?

a.

1999

b.

1995

c.

1985

d.

1990

Discuss
Answer: (c).1985
Q28.
Which device is high-performance member of the 80386 family of MPUs?

a.

80386SX

b.

80386DX

c.

80486SX

d.

80486DX

Discuss
Answer: (b).80386DX
Q29.
The 80486 family was introduced in the year ______.

a.

1987

b.

1988

c.

1989

d.

1990

Discuss
Answer: (b).1988
Q30.
________ maintains real modes protected-mode software compatibility with 80386 architecture.

a.

80486

b.

8085

c.

8086

d.

80486 DX

Discuss
Answer: (a).80486
Page 3 of 19

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