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Welcome to the 8086 Instruction Set MCQs Page

Dive deep into the fascinating world of 8086 Instruction Set with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of 8086 Instruction Set, a crucial aspect of Microprocessor. In this section, you will encounter a diverse range of MCQs that cover various aspects of 8086 Instruction Set, 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 8086 Instruction Set. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Microprocessor.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of 8086 Instruction Set. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

8086 Instruction Set MCQs | Page 6 of 9

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Q51.
If the data is present in a register and it is referred using the particular register, then it is

a.

direct addressing mode

b.

register addressing mode

c.

indexed addressing mode

d.

immediate addressing mode

Discuss
Answer: (b).register addressing mode
Q52.
The instruction, MOV AX,[BX] is an example of

a.

direct addressing mode

b.

register addressing mode

c.

register relative addressing mode

d.

register indirect addressing mode

Discuss
Answer: (d).register indirect addressing mode
Q53.
If the offset of the operand is stored in one of the index registers, then it is

a.

based indexed addressing mode

b.

relative based indexed addressing mode

c.

indexed addressing mode

d.

none of the mentioned

Discuss
Answer: (c).indexed addressing mode
Q54.
The addressing mode that is used in unconditional branch instructions is

a.

intrasegment direct addressing mode

b.

intrasegment indirect addressing mode

c.

intrasegment direct and indirect addressing mode

d.

intersegment direct addressing mode

Discuss
Answer: (b).intrasegment indirect addressing mode
Q55.
If the location to which the control is to be transferred lies in a different segment other than the current one, then the mode is called

a.

intrasegment mode

b.

intersegment direct mode

c.

intersegment indirect mode

d.

intersegment direct and indirect mode

Discuss
Answer: (d).intersegment direct and indirect mode
Q56.
The instruction, JMP 5000H:2000H;
Is an example of

a.

intrasegment direct mode

b.

intrasegment indirect mode

c.

intersegment direct mode

d.

intersegment indirect mode

Discuss
Answer: (c).intersegment direct mode
Q57.
The contents of a base register are added to the contents of index register in

a.

indexed addressing mode

b.

based indexed addressing mode

c.

relative based indexed addressing mode

d.

based indexed and relative based indexed addressing mode

Discuss
Answer: (d).based indexed and relative based indexed addressing mode
Q58.
The instruction that adds immediate data/contents of the memory location specified in an instruction/register to the contents of another register/memory location is

a.

SUB

b.

ADD

c.

MUL

d.

DIV

Discuss
Answer: (b).ADD
Q59.
In general, the destination operand of an instruction can be

a.

memory location

b.

register

c.

immediate data

d.

memory location and register

Discuss
Answer: (d).memory location and register
Q60.
Which of the following is a mnemonic?

a.

ADD

b.

ADC

c.

AAA

d.

ADD and ADC

Discuss
Answer: (c).AAA
Page 6 of 9

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