Explore topic-wise MCQs in Vhdl.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Vhdl knowledge and support exam preparation. Choose a topic below to get started.

1.

A qualified expression is synthesizable in VHDL.

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

In what way the qualified expression differs from a normal expression?

A. It has a keyword qualified in front of it
B. Its type is explicitly defined
C. Its range is defined
D. It is similar to simple expression but is synthesizable
Answer» C. Its range is defined
Discussion
3.

Which of the following can’t be aliased?

A. Signal
B. Loop variable
C. Variable
D. File
Answer» C. Variable
Discussion
4.

Which of the following is the correct syntax for declaring an alias?

A. ALIAS alias_name : object_name;
B. ALIAS alias_name ; object_name;
C. ALIAS alias_name – alias_type object_name;
D. ALIAS alias_name : alias_type object_name;
Answer» E.
Discussion
5.

A_QUALIFIED_EXPRESSION_IS_SYNTHESIZABLE_IN_VHDL.?$

A. True
B. False
Answer» B. False
Discussion
6.

Which one of the following would be the best use of qualified expression?

A. Function overloaded with bit and integer types
B. Function overloaded with bit_vector and std_logic_vector
C. Function overloaded with bit_vector and std_logic
D. Function overloaded with std_logic_vector and bit
Answer» C. Function overloaded with bit_vector and std_logic
Discussion
7.

Where one should use the qualified expression?

A. In all overloaded functions
B. In overloaded functions with different number of parameters
C. In overloaded functions with different parameter names
D. In overloaded functions with different parameter types
Answer» E.
Discussion
8.

Which of the following is the correct syntax to define a qualified expression?

A. (expression)’ type
B. (expression)” type
C. type’ (expression)
D. type” (expression)
Answer» D. type‚Äö√Ñ√∂‚àö√ë‚àöœÄ (expression)
Discussion
9.

In what way the qualified expression differ from a normal expression?

A. It has a keyword qualified in front of it
B. Its type is explicitly defined
C. Its range is defined
D. It is similar to simple expression but is synthesizable
Answer» C. Its range is defined
Discussion
10.

An alias of array type can reverse the order of the array.

A. True
B. False
Answer» B. False
Discussion
11.

Which of the following can’t be aliased?$

A. Signal
B. Loop variable
C. Variable
D. File
Answer» C. Variable
Discussion
12.

For what purpose in the following, one can use alias?

A. To divide the complex part into smaller slices
B. To decrease the simulation time
C. To make use of same memory
D. To assign different memory locations
Answer» B. To decrease the simulation time
Discussion
13.

Which of the following is a correct syntax for declaring an alias?

A. ALIAS alias_name : object_name;
B. ALIAS alias_name ; object_name;
C. ALIAS alias_name – alias_type object_name;
D. ALIAS alias_name : alias_type object_name;
Answer» E.
Discussion
14.

What does an alias declaration actually do?

A. Creates a new object
B. Doesn’t create a new object
C. Creates a new signal
D. Overwrites a file
Answer» C. Creates a new signal
Discussion