Explore topic-wise MCQs in Vhdl.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Vhdl knowledge and support exam preparation. Choose a topic below to get started.

1.

Generally, structural modeling is used with another modeling style.

A. True
B. False
Answer» B. False
Discussion
2.

For gates, which of the following modeling style will corresponds to shortest code?

A. Behavioral
B. Data flow
C. Structural
D. Both data flow and behavioral
Answer» C. Structural
Discussion
3.

In CPLD, there are many input switches arranged in a switch bank, if an AND gate is behaving oddly but could be the reason?

A. Incorrect interconnections
B. Concurrent execution of statements
C. Mismatch of ports name and switches
D. Wrong libraries included
Answer» C. Mismatch of ports name and switches
Discussion
4.

The odd behavior of gates in dataflow modeling may be the result of ________

A. Sequential statements
B. Wrong logic definitions
C. Concurrency
D. Inappropriate assignments
Answer» D. Inappropriate assignments
Discussion
5.

Sometimes gates modeled with ________ modeling may behave differently.

A. Dataflow
B. Behavioral
C. Structural
D. Structural and Behavioral
Answer» B. Behavioral
Discussion
6.

Which of the following logic describes the EXOR gate?

A. y <= ((not a) OR (not b)) AND ((not a) OR (not b));
B. y <= ((not a) OR b) AND (a OR (not b))
C. y <= ((not a) AND (not b)) OR ((not a) AND (not b));
D. y <= ((not a) AND b) OR (a AND (not b));
Answer» E.
Discussion
7.

What is the minimum number of NAND gates required to implement an EXOR gate?

A. 2
B. 3
C. 4
D. 5
Answer» D. 5
Discussion