Embedded Systems Architecture MCQ Questions
Embedded Systems Architecture MCQs : This section focuses on "Architecture" in Embedded Systems. These Multiple Choice Questions (MCQ) should be practiced to improve the Embedded Systems skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.
1. The 8051 microcontrollers work with __________ data bus.
A. 1-bit
B. 2-bit
C. 4-bit
D. 8-bit
View Answer
Ans : D
Explanation: The 8051 microcontrollers work with 8-bit data bus. So they can support external data memory up to 64K and external program memory of 64k at best.
2. When data and code lie in different memory blocks, then the architecture is referred as?
A. Von Neumann architecture
B. Harvard architecture
C. Both A and B
D. None of the above
View Answer
Ans : B
Explanation: When data and code lie in different memory blocks, then the architecture is referred as Harvard architecture. In case data and code lie in the same memory block, then the architecture is referred as Von Neumann architecture.
3. The Von Neumann architecture was first proposed by a computer scientist John von Neumann
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
View Answer
Ans : A
Explanation: True, The Von Neumann architecture was first proposed by a computer scientist John von Neumann.
4. What is true about Von-Neumann Architecture?
A. Single memory to be shared by both code and data
B. Higher speed, thus less time consuming
C. Both A and B
D. Complex in design
View Answer
Ans : C
Explanation: Single memory to be shared by both code and data and Higher speed, thus less time consuming true about Von-Neumann Architecture.
5. What is false about Harvard Architecture?
A. Separate memories for code and data.
B. Slower in speed, thus more time-consuming
C. Complex in design
D. None of the above
View Answer
Ans : D
Explanation: None of the above is false about Harvard Architecture.
6. Single clock cycle is sufficient in Harvard Architecture?
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
View Answer
Ans : A
Explanation: Single clock cycle is sufficient, as separate buses are used to access code and data.
7. CISC has _________ set of instructions.
A. small
B. large
C. depends on program
D. Can not say
View Answer
Ans : B
Explanation: Larger set of instructions. Easy to program
8. RISC has __________ clock cycle per second.
A. high
B. medium
C. low
D. None of the above
View Answer
Ans : C
Explanation: Low clock cycle per second
9. 8051 microcontrollers can address _________ of external memory.
A. 16k
B. 32k
C. 64k
D. 128k
View Answer
Ans : D
Explanation: They can support external data memory up to 64K and external program memory of 64k at best. Collectively, 8051 microcontrollers can address 128k of external memory.
10. Von-Neumann Architecture is Simple in design.
A. Yes
B. No
C. Can be yes or no
D. Can not say
View Answer
Ans : A
Explanation: Yes, Simple in design.
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