DATATYPES2024-25

What is a variable in Python?

• A reserved word

• A data type

• A location in memory to store data

• A function

How do you declare a variable in Python?

• var x

• x = variable

• declare x

• x = 4

What is the correct way to comment a single line in Python?

• // This is a comment

• # This is a comment

• /* This is a comment */

• -- This is a comment

Which of the following is a valid variable name in Python?

• 1variable

• my_variable

• global

• variable-1

How do you swap the values of two variables in Python without using a third variable?

• x = y; y = x

• x, y = y, x

• temp = x; x = y; y = temp

• x + y; y = x; x = y

Which of the following data types is immutable in Python?

• List

• Tuple

• Set

• Dictionary

What is the output of the following code? x = 10 y = 5 z = x + y print(z)

• 10

• 15

• "10+5"

• Error

What does the type() function return in Python?

• The value of the variable

• The type of the variable

• The memory address of the variable

• The length of the variable

What is the scope of a global variable in Python?

• Limited to the function it is defined in

• Limited to the module it is defined in

• Limited to the class it is defined in

• Limited to the block it is defined in

How do you convert a string to an integer in Python?

• int(string)

• convert(int, string)

• str_to_int(string)

• stringToInt(string)