PCEP Error Handling and Debugging

Question 1

What does the "try...except" block in Python do?

Accepted Answer

Catches and handles exceptions or errors that occur during execution

Answer

Executes code only if no errors occur

Answer

Terminates the program if an error occurs

Answer

Ignores all errors during execution

Question 2

What type of error occurs if you try to access an undefined variable?

Accepted Answer

NameError

Answer

TypeError

Answer

IndexError

Answer

ValueError

Question 3

What is the purpose of the "else" block in a "try...except" structure in Python?

Accepted Answer

To execute code if no exceptions are raised in the try block.

Answer

To handle any exceptions raised in the try block.

Answer

To execute code if the try block raises an exception.

Answer

To execute code before the try block.

Question 4

What does the "finally" block do in "a try...except" structure?

Accepted Answer

It executes whether an exception is raised or not.

Answer

It executes only if an exception is raised.

Answer

It executes only if no exception is raised.

Answer

It is optional and not used in exception handling.

Question 5

Which of the following statements is true about debugging in Python?

Accepted Answer

The "pdb" module is Python’s built-in debugger that allows you to step through code, set breakpoints, and inspect variables.

Answer

You can only use print statements for debugging in Python.

Answer

Python does not have any debugging tools; you need to use external editors.

Answer

Debugging is only necessary for large projects; small scripts do not need it.