Python

Which of the following is a valid Python identifier?

• 1variable

• _variable

• variable name

• variable-name

Which of the following is not a valid naming convention for Python identifiers?

• snake_case

• PascalCase

• camelCase

• kebab-case

What is the maximum length of a Python identifier?

• 32 characters

• 64 characters

• 128 characters

• There is no maximum length

Which of the following is not a reserved word in Python and can be used as an identifier?

• if

• for

• and

• while

Which of the following is true about Python identifiers?

• They are case-sensitive.

• They can start with a digit.

• They can contain special characters like @ or #.

• They can be a Python built-in function name.

Which of the following is not a built-in data type in Python?

• int

• float

• string

• array

What is the difference between a tuple and a list in Python?

• Tuples are mutable, and lists are immutable.

• Tuples are ordered, and lists are unordered.

• Tuples are enclosed in parentheses, and lists are enclosed in square brackets.

• Tuples can contain elements of different data types, while lists can only contain elements of the same data type.

Which data type is used to represent a Boolean value in Python?

• bool

• boolean

• bit

• logical

Which data type is used to represent a collection of key-value pairs in Python?

• dictionary

• set

• tuple

• array

Which of the following data types is mutable in Python?

• int

• float

• tuple

• list