Python - Chapter 3 Practice Quiz

A variable in Python is...

• A named container that stores values.

• A function that executes code.

• A constant value that cannot be changed.

• An error encountered during execution.

What does an assignment statement do in Python?

• It assigns a value to a variable.

• It performs arithmetic operations.

• It performs logical operations.

• It takes input from the user.

In Python, the '=' symbol...

• denotes an assignment operation.

• denotes an equality check.

• denotes a comparison operation.

• denotes a subtraction operation.

The left side of an assignment in Python must be...

• A literal

• A variable

• An expression

• A function call

Which of the following is true about Python identifiers?

• They can include letters, digits, and underscores, but cannot start with a digit.

• They can start with a digit and include any characters.

• They must start with an underscore and can only include letters.

• They can only consist of digits.

Python is case-sensitive. True or False?

• True

• False

In Python, what is a floating-point number?

• A number with a fractional part, represented with a decimal point.

• A whole number without a fractional component.

• A number expressed in exponential notation only.

• A string representing a number.

What happens when a float value is too large to be represented in Python?

• An OverflowError is raised

• It becomes infinity

• It returns NaN

• It remains unchanged

In Python, what is an expression?

• It is a combination of values, variables, and operators that can be evaluated to produce a result.

• It is a data structure used to store multiple items.

• It is a library for creating and managing functions.

• It indicates a syntax error in Python.

Best practice for naming variables in Python is:

• Use lowercase letters with underscores

• Use CamelCase

• Use all uppercase letters

• Use numbers only