Exception Handling

Consider the following Python code:

try:
    result = 10 / 0
except ZeroDivisionError as e:
    result = "Error: " + str(e)

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, resulting in a ZeroDivisionError. The exception is caught, and "result" is assigned the string "Error: division by zero."

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What does the with statement provide in Python for file handling?

A:

It raises exceptions

B:

It terminates the program

C:

It ensures proper resource cleanup

D:

It defines custom exception classes

Answer: C

The with statement is used for file handling in Python and ensures proper resource cleanup by automatically closing the file when the block is exited, even if an exception occurs.

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Which of the following is a built-in exception in Python that is raised when a specified key is not found in a dictionary?

A:

KeyError

B:

ValueError

C:

NotFoundException

D:

MissingKeyError

Answer: A

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

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What is the purpose of the AssertionError?

A:

It is a generic exception raised for all assert statements

B:

It is raised when an assertion fails

C:

It is raised when an assert statement is not used

D:

It is raised when a try block encounters an error

Answer: B

The AssertionError is raised when an assert statement fails, indicating that a condition specified in the assert statement is False.

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Which of the following statements is true about the try, except, and finally blocks?

A:

The except block is mandatory if there is a finally block

B:

The finally block is optional

C:

The try block is optional

D:

The except block is optional if there is a finally block

Answer: B

The finally block is optional in exception handling. It can be used for cleanup operations and will be executed whether an exception occurs or not.

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Questions for: Exception Handling