Python Variables Quiz

What is the primary purpose of variables in Python?

• Store numbers only

• Keep values accessible and provide context

• Perform time-consuming operations

• Display text on the screen

Which symbol is used as the assignment operator in Python?

• +

• =

• /

What happens if you try to print a variable that has not been assigned a value?

• The program runs without errors.

• It prints the default value.

• It raises a NameError.

• It prompts the user for input.

Which of the following is a valid Python variable name?

• 9lives

• list_of_names

• 2beOrNot2Be

• -variable

Why are descriptive variable names important?

• They save memory.

• They make the code run faster.

• They provide clarity and understanding.

• They are a requirement in Python.

What is the role of the assignment operator (=) in Python?

• Checks for equality

• Adds two numbers

• Assigns a value to a variable

• Multiplies two numbers

Why are variable names case-sensitive in Python?

• It's a design flaw in Python.

• It enhances code readability.

• It allows for flexibility in naming.

• It's a requirement of PEP 8.

What does PEP 8 refer to in Python?

• A programming language

• A Python enhancement proposal

• A Python style guide

• A Python library

Which variable name is more descriptive?

• s

• seconds

• seconds_per_hour

• time

In Python, what is the recommended convention for variable naming?

• CamelCase

• mixedCase

• snake_case

• PascalCase