Python Variables Quiz

What is a variable in Python?

• A type of loop

• A container that holds data

• A special function in Python

• A built-in keyword

Which of the following is a valid variable name?

• 1name

• my-score

• _age

• my score

What will be the output of the following code? Age = 30 age = 25 print(Age, age)

• 30 25

• 25 30

• Error: Variables cannot have different cases

• None of the above

Which of the following is NOT a valid rule for naming variables in Python?

• Variable names must start with a letter or an underscore

• Variable names can contain spaces

• Variable names are case-sensitive

• Variable names should not use Python keywords

What will be the output of the following code? name = "Alice" age = 18 print(type(name)) print(type(age))

Why is the following variable declaration invalid? def = "Hello"

• Variable names cannot contain strings

• def is a Python keyword

• def must start with an underscore

• Python does not allow assigning strings to variables

Which of the following is a meaningful variable name?

• x

• var1

• student_score

• abc

What is the error in the following variable declaration? my-score = 50

• Variables cannot contain numbers

• Variables cannot contain special characters like -

• Variables cannot contain letters

• Variables must start with an underscore

What is the correct way to swap two numbers in Python?

• a = 5 b = 10 a, b = b, a

• a = 5 b = 10 a = b b = a

• a = 5 b = 10 temp = a a = a + b b = temp

• a = 5 b = 10 swap(a, b)

Which of the following is an example of a valid and meaningful variable name?

• studentAge

• 1student

• my score

• total-marks