Explore topic-wise MCQs in Vhdl.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Vhdl knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following is the default type of ports of an entity?

A. Variables
B. Constants
C. Signals
D. Functions
Answer» D. Functions
Discussion
2.

A user wants a constant to be declared in such a way that it can be accessible by whole code, where should the user declare this constant?

A. Package
B. Entity
C. Architecture
D. Configuration
Answer» B. Entity
Discussion
3.

What is the scope of a constant declared in an entity?

A. Local to the entity
B. Global to the whole code
C. Local to the port
D. Global to the entity and all the architecture associated
Answer» E.
Discussion
4.

Which of the following can’t be declared in an architecture?

A. Signal
B. Constant
C. Variable
D. BIT_VECTOR
Answer» D. BIT_VECTOR
Discussion
5.

A constant is declared in Architecture, it will be accessible in ________

A. Whole code
B. Within the same architecture
C. In the entity associated and corresponding architecture
D. In the process within the architecture
Answer» C. In the entity associated and corresponding architecture
Discussion
6.

Which of the following is local to the block in which it is declared?

A. Signal
B. Integer
C. Constant
D. Variable
Answer» E.
Discussion
7.

How to declare a constant in VHDL?

A. CONSTANT name : type := value;
B. CONSTANT name := value;
C. CONSTANT name := type := value;
D. CONSTANT name := type : value;
Answer» B. CONSTANT name := value;
Discussion
8.

Use of constants is to _________

A. Represent wires
B. Represent local information
C. Represent default value
D. Pass value between entities
Answer» D. Pass value between entities
Discussion
9.

What is the use of a variable?

A. To represent local value
B. To represent default value
C. To set default value
D. To declare a subprogram
Answer» B. To represent default value
Discussion
10.

Which of the following is the correct use of the signal?

A. To set a default value
B. To pass value between circuits
C. To declare a variable
D. To represent local information
Answer» C. To declare a variable
Discussion