Introduction To Microprocessor 8086


10 Questions MCQ Test Topicwise Question Bank for Electronics Engineering | Introduction To Microprocessor 8086


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This mock test of Introduction To Microprocessor 8086 for Electronics and Communication Engineering (ECE) helps you for every Electronics and Communication Engineering (ECE) entrance exam. This contains 10 Multiple Choice Questions for Electronics and Communication Engineering (ECE) Introduction To Microprocessor 8086 (mcq) to study with solutions a complete question bank. The solved questions answers in this Introduction To Microprocessor 8086 quiz give you a good mix of easy questions and tough questions. Electronics and Communication Engineering (ECE) students definitely take this Introduction To Microprocessor 8086 exercise for a better result in the exam. You can find other Introduction To Microprocessor 8086 extra questions, long questions & short questions for Electronics and Communication Engineering (ECE) on EduRev as well by searching above.
QUESTION: 1

 Consider the following statements:
1. A total of about one million bytes can be directly addressed by the 8086 microprocessors,
2. 8086 has thirteen 16 bit- registers.
3. 8086 has eight flags.
4. Compared to 8086, the 80286 provides a higher degree of memory protection.

Which of the statements given above are correct?

Solution:

8086 microprocessor has total 9 flags namely- OF, DF, IF, TF, S, Z, AC, P and C. Hence, statement-3 is not correct.

QUESTION: 2

 Direction flag is used with

Solution:

Direction flag is used only with string instructions.

QUESTION: 3

Which of the following pairs of 8086 microprocessor's interrupt is not correctly matched?

Solution:
QUESTION: 4

What will be the contents of register AL after the following program has been executed in a 8086 microprocessor?
MOV AL, 7E 
MOV BL, 8C 
ADD AL, BL

Solution:

QUESTION: 5

Match List-I (2 pins of 8086) with List-il (Status) and select the correct answer using the codes given below the list

List-I I
What is read/written?
1. 1 -byte from/to odd address
2. 1-byte from/to even address
3. One 16-bitword
4. NOP

Solution:
QUESTION: 6

Number of times the instruction sequence below will loop before coming out of loop is

Solution:
QUESTION: 7

Match List-I (8085 Register) with List-ll (8086 Register) and select the correct answer using the codes given below the lists:

Solution:
QUESTION: 8

 Match List-I (Addressing modes of 8086) with List-ll (8086 Instructions) and select the correct answer using the codes given below the lists:

List-I
A. Register indirect addressing mode
B. Indexed addressing mode
C. Direct addressing mode
D. Based addressing mode

Solution:
QUESTION: 9

When an 8086 microprocessor executes an INT type instruction, it

Solution:
QUESTION: 10

Consider the following instructions executed in 8086;
PUSH AX ; AX has 20 Hex in it
PUSH BX ; BX has 34 Hex in it
POP AX 
ADD AX, BX 
POP G

The value stored in-G would be

Solution:

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