C# Exception Handling Questions with Answers | Programming Q&A | Page 3

C# Exception Handling is a crucial topic in programming interviews and technical assessments. This section provides comprehensive programming questions and answers related to handling runtime errors in C#. Understanding exception handling helps developers write reliable code that gracefully manages unexpected events using constructs like try, catch, finally, and throw. These C# programming MCQs and interview-based examples are often seen in company placement tests such as TCS, Infosys, Wipro, and Capgemini. Practicing these C# exception handling questions with answers will strengthen your understanding of error handling and help you prepare for real-world coding challenges as well as competitive programming rounds.

Showing 10 of 30 questions

Per page:

Q21

What does the catch block without parameters catch?

A No exceptions
B Only system exceptions
C Only application exceptions
D All exceptions

Answer: Option D

Explanation: Parameterless catch handles all exception types.

Q22

Which exception is thrown for invalid cast operations?

A TypeException
B CastException
C InvalidCastException
D ConversionException

Answer: Option C

Explanation: InvalidCastException occurs on invalid type casting.

Q23

What is exception bubbling?

A Creating multiple exceptions
B Exception propagating up call stack
C Catching all exceptions
D Ignoring exceptions

Answer: Option B

Explanation: Exception propagates up the call stack until caught.

Q24

Which method returns exception information?

A GetMessage()
B ToString()
C GetException()
D PrintStackTrace()

Answer: Option B

Explanation: ToString() provides detailed exception information.

Q25

What is the purpose of custom exceptions?

A To replace all built-in exceptions
B To handle application-specific errors
C To improve performance
D To reduce code size

Answer: Option B

Explanation: Custom exceptions handle application-specific errors.

Q26

Which exception is thrown for array index out of bounds?

A ArrayException
B IndexOutOfRangeException
C BoundaryException
D ArrayBoundException

Answer: Option B

Explanation: IndexOutOfRangeException for invalid array indices.

Q27

What is the order of exception handling blocks?

A catch-finally-try
B try-catch-finally
C finally-try-catch
D catch-try-finally

Answer: Option B

Explanation: Try-catch-finally is the standard sequence.

Q28

Which exception is thrown for file not found?

A FileException
B FileNotFound
C FileNotFoundException
D MissingFileException

Answer: Option C

Explanation: FileNotFoundException for missing files.

Q29

What is the purpose of the throw statement without exception?

A Throws new exception
B Re-throws current exception
C Ignores exception
D Creates custom exception

Answer: Option B

Explanation: Re-throws current exception in catch block.

Q30

Which property provides exception message?

A Description
B Error
C Message
D Text

Answer: Option C

Explanation: Message property contains error description.

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