Explore topic-wise MCQs in Vhdl.

This section includes 22 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 returns TRUE if there is no component instantiation statement in the block?

A. ‘STRUCTURE
B. ‘BLOCK_COMPONENT
C. ‘BLOCK_BEHAVIOUR
D. ‘BEHAVIOR
Answer» E.
Discussion
2.

What kind of information is provided by the value block attributes?

A. About the block name
B. About the modeling of block
C. About the architecture name
D. About the inputs used in block
Answer» C. About the architecture name
Discussion
3.

Which of the following attribute is available for all types?

A. ‘LEFT
B. ‘ASCENDING
C. ‘BASE
D. ‘HIGH
Answer» D. ‘HIGH
Discussion
4.

For which of the following declarations, the value returned by ‘ASCENDING attribute will be true?

A. For array_1 only
B. For array_2 only
C. For both array_1 and array_2
D. Neither for array_1 nor for array_2View Answer
Answer» B. For array_2 only
Discussion
5.

Which of the following is the return type of value T’ASCENDING?

A. Bit
B. Integer
C. Boolean
D. Same as T
Answer» D. Same as T
Discussion
6.

The formula for T’LENGTH is best described by which of the following?

A. T’HIGH – T’LOW + 1
B. T’HIGH – T’LOW
C. T’HIGH + T’LOW – 1
D. T’HIGH + T’LOW
Answer» B. T’HIGH – T’LOW
Discussion
7.

What will be the value of my_array’LENGTH, if my_array is defined as below code?

A. 15
B. 16
C. 0
D. 32View Answer
Answer» C. 0
Discussion
8.

What will be the type of value returned by the attribute T’LENGTH?

A. BIT
B. INTEGER
C. STD_LOGIC
D. BOOLEAN
Answer» C. STD_LOGIC
Discussion
9.

What will be the value of x and y in the code given below?

A. 0, 0
B. 0, 15
C. 15, 0
D. 15, 15View Answer
Answer» D. 15, 15View Answer
Discussion
10.

What will be the value of x and y?

A. 0, 0
B. 0, 15
C. 15, 0
D. 15, 15View Answer
Answer» E.
Discussion
11.

What does the attribute T’HIGH returns?

A. Upper bound of the object
B. Lower bound of the object
C. Highest value of the object
D. Rightmost value of the object
Answer» B. Lower bound of the object
Discussion
12.

If T is an object, then T’LEFT attribute returns ________

A. Upper bound of object
B. Leftmost value of object
C. Leftmost value of an array
D. Lower bound of the object
Answer» C. Leftmost value of an array
Discussion
13.

0,_0?$

A. 0, 15
B. 15, 0
C. 15, 15
Answer» C. 15, 15
Discussion
14.

What_will_be_the_type_of_value_returned_by_the_attribute_T’LENGTH?$#

A. BIT
B. INTEGER
C. STD_LOGIC
D. BOOLEAN
Answer» B. INTEGER
Discussion
15.

Which of the following is return type of value T’ASCENDING?$

A. Bit
B. Integer
C. Boolean
D. Same as T
Answer» C. Boolean
Discussion
16.

The formula for T’LENGTH is best described by which of the following?$

A. T’HIGH – T’LOW + 1
B. T’HIGH – T’LOW
C. T’HIGH + T’LOW – 1
D. T’HIGH + T’LOW
Answer» D. T‚Äö√Ñ√∂‚àö√ë‚àö¬•HIGH + T‚Äö√Ñ√∂‚àö√ë‚àö¬•LOW
Discussion
17.

0, 0

A. 0, 15
B. 15, 0
C. 15, 15
Answer» D.
Discussion
18.

What does the attribute T’HIGH returns?$

A. Upper bound of the object
B. Lower bound of the object
C. Highest value of the object
D. Rightmost value of the object
Answer» B. Lower bound of the object
Discussion
19.

If T is an object, then T’LEFT attribute returns ________$

A. Upper bound of object
B. Leftmost value of object
C. Leftmost value of an array
D. Lower bound of the object
Answer» C. Leftmost value of an array
Discussion
20.

Which of the following is not a category of Value kind attribute?

A. Value type attributes
B. Value array attributes
C. Value block attributes
D. Value function attributes
Answer» E.
Discussion
21.

Value attributes are classified into _______ subclasses.

A. 1
B. 2
C. 3
D. 4
Answer» D. 4
Discussion
22.

What does a value kind attribute return?

A. A single value
B. A signal
C. A function
D. A type
Answer» B. A signal
Discussion