Addressing Modes MCQ Questions

Addressing Modes MCQs : This section focuses on "Addressing Modes" in Computer Organization & Architecture. These Multiple Choice Questions (MCQ) should be practiced to improve the Computer Organization & Architecture skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.

1. Addressing modes for 8086 instructions are divided into?

A. two categories
B. three categories
C. four categories
D. five categories

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2. In ________ the operand is specified in the instruction itself

A. Immediate addressing
B. Register mode
C. Implied addressing
D. Register Indirect

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3. In which mode the operand is placed in one of 8 bit or 16 bit general purpose registers?

A. Immediate addressing
B. Register mode
C. Implied addressing
D. Register Indirect

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4. An offset is determined by adding any combination of ________ address elements

A. 3
B. 4
C. 5
D. 6

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5. Zero address instruction are designed with implied addressing mode.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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6. Add #45, when this instruction is executed the following happen/s _______

A. The processor raises an error and requests for one more operand
B. The value stored in memory location 45 is retrieved and one more operand is requested
C. The value 45 gets added to the value on the stack and is pushed onto the stack
D. None of the above

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7. In the following indexed addressing mode instruction, MOV 5(R1), LOC the effective address is ______

A. EA = 5+R1
B. EA = R1
C. EA = [R1]
D. EA = 5+[R1]

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8. The addressing mode/s, which uses the PC instead of a general purpose register is ______

A. Indexed with offset
B. Relative
C. Direct
D. Both Indexed with offset and direct

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9. The effective address of the following instruction is MUL 5(R1,R2).

A. 5+R1+R2
B. 5+(R1*R2)
C. 5+[R1]+[R2]
D. 5*([R1]+[R2])

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10. _____ addressing mode is most suitable to change the normal sequence of execution of instructions.

A. Relative
B. Indirect
C. Index with Offset
D. Immediate

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