Microprocessor Online Quiz


Play this quiz that will help you to excel in Microprocessor certification exams, placements etc. This Microprocessor quiz consist of 10 questions that you need to solve in 10 minutes. We’ve specially designed this quiz so that you can quickly acquaint to the pattern of questions you can be asked in placement drives, certification exams etc.

Introduction to Microprocessors

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Explain the basic block diagram of digital computer system and Explain microprocessor-based system.

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Microprocessor MCQs

Practice Microprocessor MCQ Questions, which will help you to understand the architecture and working of microprocessor and to prepare for competitive exams and placements.

Microprocessor Quiz

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Microprocessor Quiz

1. DMA stands for?

Display Memory Access
Directly Memory Access
Device Memory Access
Direct Memory Access

2. What is correct range of frequency for 8257?

500Hz to 3MHz.
250Hz to 2MHz.
250Hz to 3MHz.
500Hz to 2MHz.

3. What is true about Encoded Mode?

the unit contains registers to store the keyboard, display modes
the counter internally decodes the least significant 2 bits and provides a decoded 1 out of 4 scan on SL0-SL3.
the processor is requested service only if any key is pressed, otherwise the CPU will continue with its main task.
the counter provides the binary count that is to be externally decoded to provide the scan lines for the keyboard and display.

4. Which of the following are advantage of Loosely Coupled Configuration?

Having more than one processor results in increased efficiency.
easy to achieve parallel processing.
system structure is flexible
All of the above

5. 8051 microcontroller is designed by Intel in?

1980
1981
1982
1983

6. A microprocessor can be classified into?

2
3
4
5

7. It is also a 16-bit register works like stack, which is always incremented/decremented by 2 during push & pop operations.

Stack pointer
Temporary register
Flag register
Program counter

8. It is a tri-state, bi-directional, 8-bit buffer, which is used to interface the 8253/54 to the system data bus.

Read/Write Logic
Data Bus Buffer
system data bus
System Buffer

9. The different ways in which a source operand is denoted in an instruction is known as

Instruction Set
Interrupts
8086 Configuration
Addressing Modes

10. At what PIN number, there is a RESET pin, which is used to reset the microcontroller to its initial values?

PIN 9
PIN 20
PIN 30
PIN 35

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