C++ Exception Handling Fundamentals

1. What is thrown when attempting to dereference a null pointer in a checked context?

Std::bad_alloc

Std::nullptr_error

Std::null_pointer_exception

No standard exception; undefined behavior

2. True or False: Exceptions should be caught by const reference to avoid slicing.

True

False

3. What happens if no catch block matches a thrown exception?

The exception is silently ignored

The program continues normally

Std::terminate() is called

A default catch block executes

4. True or False: The stack is unwound when an exception is thrown.

True

False

Submit

6. Which exception is thrown for invalid type casts using dynamic_cast?

Std::bad_cast

Std::type_error

Std::cast_exception

Std::conversion_error

7. What is the primary purpose of the noexcept keyword in C++11 and later?

To suppress all exceptions

To specify that a function doesn't throw exceptions

To catch exceptions automatically

To define custom exceptions

8. True or False: An exception thrown inside a catch block cannot be caught by an outer try-catch.

True

False

Submit

10. Which exception is thrown when dynamic memory allocation fails?

Std::bad_alloc

Std::memory_error

Std::allocation_failed

Std::out_of_memory

11. What keyword is used to throw an exception in C++?

Throw

Catch

Try

Error

12. True or False: You can create custom exception classes by inheriting from std::exception.

True

False

Submit

14. Which exception is thrown when accessing an out-of-range vector element?

Std::overflow_error

Std::out_of_range

Std::invalid_argument

Std::range_error

15. What does the 'what()' function do in exception handling?

Terminates the program

Returns an error message string

Retries the operation

Ignores the exception

16. True or False: Multiple catch blocks can follow a single try block.

True

False

Submit

18. What is the base class for all standard exceptions in C++?

Error

Exception

Std::exception

Throwable

19. Which of the following is the correct syntax for a try-catch block?

Try { } except { }

Try { } catch { }

Attempt { } catch { }

Try { } handle { }

CPP Exception Handling Quiz

1. What is thrown when attempting to dereference a null pointer in a checked context?

2.

What first name or nickname would you like us to use?

2. True or False: Exceptions should be caught by const reference to avoid slicing.

3. What happens if no catch block matches a thrown exception?

4. True or False: The stack is unwound when an exception is thrown.

5. A function declared with 'throw()' specification means it____ any exceptions.

6. Which exception is thrown for invalid type casts using dynamic_cast?

7. What is the primary purpose of the noexcept keyword in C++11 and later?

8. True or False: An exception thrown inside a catch block cannot be caught by an outer try-catch.

9. In exception handling, the order of catch blocks matters; more____ exceptions should be caught first.

10. Which exception is thrown when dynamic memory allocation fails?

11. What keyword is used to throw an exception in C++?

12. True or False: You can create custom exception classes by inheriting from std::exception.

13. A catch-all handler uses the ellipsis operator____.

14. Which exception is thrown when accessing an out-of-range vector element?

15. What does the 'what()' function do in exception handling?

16. True or False: Multiple catch blocks can follow a single try block.

17. In C++, a catch block can catch exceptions by____.

18. What is the base class for all standard exceptions in C++?

19. Which of the following is the correct syntax for a try-catch block?