C# Delegates Questions with Answers | Programming Interview MCQ | Page 4

Delegates in C# are powerful constructs that allow methods to be passed as parameters, forming the foundation for event handling and lambda expressions. This section contains C# programming questions and answers focusing on delegate declaration, invocation, and multicast behavior. These C# delegates questions with answers are commonly asked in Infosys, TCS, and Capgemini technical interviews. Understanding delegates enhances your grasp of advanced C# features like events and asynchronous programming, which are key to writing flexible, maintainable applications.

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Q31

What is contravariance in delegates?

A Returning more general types
B Accepting more general parameters
C Handling void return types
D Working with value types only

Answer: Option B

Explanation: Contravariance allows a delegate to accept a less derived parameter than specified in its signature.

Q32

Which method is used to invoke a delegate asynchronously?

A InvokeAsync
B BeginInvoke
C StartAsync
D ExecuteAsync

Answer: Option B

Explanation: BeginInvoke method is used for asynchronous delegate invocation.

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Delegates Questions and Answers

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