C# Programming - Interfaces

Why C# Programming Interfaces?

In this section you can learn and practice C# Programming Questions based on "Interfaces" and improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence.

Where can I get C# Programming Interfaces questions and answers with explanation?

IndiaBIX provides you lots of fully solved C# Programming (Interfaces) questions and answers with Explanation. Solved examples with detailed answer description, explanation are given and it would be easy to understand. All students, freshers can download C# Programming Interfaces quiz questions with answers as PDF files and eBooks.

Where can I get C# Programming Interfaces Interview Questions and Answers (objective type, multiple choice)?

Here you can find objective type C# Programming Interfaces questions and answers for interview and entrance examination. Multiple choice and true or false type questions are also provided.

How to solve C# Programming Interfaces problems?

You can easily solve all kind of C# Programming questions based on Interfaces by practicing the objective type exercises given below, also get shortcut methods to solve C# Programming Interfaces problems.

Exercise :: Interfaces - General Questions

  • Interfaces - General Questions
1. 

Which of the following statements is correct about the C#.NET code snippet given below?

interface IMyInterface
{ 
    void fun1(); 
    int fun2();
}
class MyClass: IMyInterface
{ 
    void fun1()
    { } 
    int IMyInterface.fun2()
    { } 
}

A. A function cannot be declared inside an interface.
B. A subroutine cannot be declared inside an interface.
C. A Method Table will not be created for class MyClass.
D. MyClass is an abstract class.
E. The definition of fun1() in class MyClass should be void IMyInterface.fun1().

Answer: Option E

Explanation:

No answer description available for this question. Let us discuss.

2. 

Which of the following can be declared in an interface?

  1. Properties
  2. Methods
  3. Enumerations
  4. Events
  5. Structures

A. 1, 3
B. 1, 2, 4
C. 3, 5
D. 4, 5

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

3. 

A class implements two interfaces each containing three methods. The class contains no instance data. Which of the following correctly indicate the size of the object created from this class?

A. 12 bytes
B. 24 bytes
C. 0 byte
D. 8 bytes
E. 16 bytes

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

4. 

Which of the following statements is correct about an interface used in C#.NET?

A. One class can implement only one interface.
B. In a program if one class implements an interface then no other class in the same program can implement this interface.
C. From two base interfaces a new interface cannot be inherited.
D. Properties can be declared inside an interface.
E. Interfaces cannot be inherited.

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

5. 

Which of the following statements is correct about Interfaces used in C#.NET?

A. All interfaces are derived from an Object class.
B. Interfaces can be inherited.
C. All interfaces are derived from an Object interface.
D. Interfaces can contain only method declaration.
E. Interfaces can contain static data and methods.

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.