BCA TU Microprocessor MCQ 2020 with answers

BCA TU Microprocessor MCQ 2020 with answers

Hello buddies, today we are back with MCQ Question paper of Microprocessor and Computer Architecture  which was held on 2078-04-25 during second wave of corona virus. Though this exam is held in the year 2021 August, the question papers are termed as of year 2020.

Below is the Multiple Choice Question paper of Microprocessor and Computer Arch. with the answers marked bold. Please go through it:

BCA Second Semester 2020  Microprocessor MCQ Group A

1.      A 32-bit address bus allows access to a memory of capacity.

a. 64MB                b. 16MB           c. 1GB              d. 4 GB

2. Which is used to store critical pieces of data during subroutines and interrupts?

a. Stack    b. Queue         c. Accumulator                        d. Data register

3. The cycle required to fetch and execute instruction in an 8085 microprocessor Is

a. Clock cycle        b. Memory cycle         c. Instruction cycle     d. Machine cycle

4.  The constant of accumulator before CMA instruction is A5H. Its content after instruction execution is

a. A5H       b. 5AH             c. AAH             d. 55H

5. The BSA instruction is

a. Branch and store accumulator             b. Branch and save return address

c. Branch and shift address                      d. Branch and show accumulator

6. A micro program sequencer

a. Generates the address of next micro instruction to be executed.

b. generates the control signals to execute a microinstruction

c. sequentially averages all micro instructions in the control memory

d. enables the efficient handling of a micro program subroutine

7. The instruction fetch operation in initiated by loading the contents of program counter

into the and sends.... request to memory.

a. Memory register and read                   b. Memory register and write

c. Data register and read                                    d. Address register and read

8. The control memory contains a set of words where each word is

a. Microinstruction                     b. Programs     c. Sets              d. Mnemonics

9. Who determine under what conditions the branching will occur and when

a. By combination of CD and BT              b. By combination of CD and BR

c. By Combination of CD and CR              d. By combination of TD and BR

10. Which addressing mode is an extremely influential way of addressing

a. Immediate        b. Direct          c. Register addressing             d. Displacement Addressing

The PDF file of this question Paper is given below you can view it online or download from the download link below:

Download Microprocessor MCQ 2020 with Answers

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