VB.Net Online Quiz



Following quiz provides Multiple Choice Questions (MCQs) related to VB.Net. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 2 - Which of the following converts the expression to Integer data type in VB.NET?

A - CDbl(expression)

B - CDec(expression)

C - CInt(expression)

D - CLng(expression)

Answer : C

Explanation

CInt(expression) − Converts the expression to Integer data type.

Q 4 - Which of the following accesss modifier indicates that a conversion operator (CType) converts a class or structure to a type that might not be able to hold some of the possible values of the original class or structure?

A - MustInherit

B - MustOverride

C - Narrowing

D - NotInheritable

Answer : C

Explanation

Narrowing − Indicates that a conversion operator (CType) converts a class or structure to a type that might not be able to hold some of the possible values of the original class or structure.

Q 5 - Which of the following accesss modifier specifies that one or more declared programming elements have no access restrictions?

A - Private

B - Protected

C - Public

D - ReadOnly

Answer : C

Explanation

Public − Specifies that one or more declared programming elements have no access restrictions.

Q 6 - Which of the following statement declares the name of a structure and introduces the definition of the variables, properties, events, and procedures that the structure comprises?

A - Structure

B - Module

C - Interface

D - Function

Answer : A

Explanation

Structure − Declares the name of a structure and introduces the definition of the variables, properties, events, and procedures that the structure comprises.

Q 7 - Which of the following directive is used for indicating a mapping between specific lines of source code and text external to the source?

A - #Const

B - #ExternalSource

C - #If...Then...#Else

D - #Region

Answer : B

Explanation

#ExternalSource − This directive is used for indicating a mapping between specific lines of source code and text external to the source. It is used only by the compiler and the debugger has no effect on code compilation. This directive allows including external code from an external code file into a source code file.

Q 8 - Which of the following operator declares the parameters and code that define a function lambda expression?

A - AddressOf

B - Await

C - GetType

D - Function Expression

Answer : D

Explanation

Function Expression − It declares the parameters and code that define a function lambda expression.

Q 9 - Which of the following Collection class of VB.NET uses a key to access the elements in the collection?

A - ArrayList

B - Hashtable

C - SortedList

D - Stack

Answer : B

Explanation

Hashtable − It uses a key to access the elements in the collection. A Hashtable is used when you need to access elements by using key, and you can identify a useful key value. Each item in the hash table has a key/value pair. The key is used to access the items in the collection.

Q 10 - User-defined exception classes are derived from the ApplicationException class in VB.NET?

A - true

B - false

Answer : A

Explanation

User-defined exception classes are derived from the ApplicationException class.

vb.net_questions_answers.htm
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