Exception Handling

What does the try and except blocks in Python exception handling allow you to do?

A:

Define custom exception classes

B:

Raise exceptions intentionally

C:

Handle and catch exceptions

D:

Terminate the program

Answer: C

The try block is used to enclose code that might raise an exception, and the except block is used to handle and catch the raised exceptions.

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What is the purpose of the pass statement in exception handling?

A:

To re-raise an exception

B:

To ignore an exception and continue with the program execution

C:

To define custom exception classes

D:

To print the exception message

Answer: B

The pass statement is used as a placeholder to ignore an exception and continue with the program execution when no action is required.

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In Python, what is the purpose of the else block in exception handling?

A:

It is executed if an exception occurs

B:

It is used to define custom exception classes

C:

It is executed if no exception occurs in the try block

D:

It is used to raise exceptions

Answer: C

The else block is executed only if no exceptions are raised in the associated "try" block. It is used to specify code that should run when there are no exceptions.

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Which of the following is a built-in exception in Python for handling errors related to accessing a key that does not exist in a dictionary?

A:

KeyError

B:

ValueNotFoundError

C:

NoSuchElementError

D:

DictionaryError

Answer: A

A KeyError is raised when attempting to access a key in a dictionary that does not exist.

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Consider the following Python code:

try:
    result = 10 / 0
except ZeroDivisionError:
    result = "Error: Division by zero"

What will be the value of "result" after the execution of this code?

A:

10

B:

0

C:

"Error: Division by zero"

D:

None

Answer: C

The code attempts to divide by zero, which raises a ZeroDivisionError. The exception is caught, and "result" is assigned the string "Error: Division by zero."

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Questions for: Exception Handling