Variables and Data Types

Which of the following represents labels that represent values in computer and that can be changed during program execution?

• Variables

• Constants

• Data types

Which of the following is FALSE?

• Variable declaration is done at the start of the program

• Variable declaration is important to allocate required memory space

• Not initialising a variable results in an error-free output

• All of the above

What symbol is used to assign values in Python?

• =

• ==

• ←

Which of the following is NOT an integer?

• 3

• -3.2

• -3

• 0

Which of the following is a real number?

• 3

• 3.5

• -4

• All of the above

Which of the following data types is used to store several characters?

• Character

• String

• Boolean

• All of the above

Complete this sentence: A ………………… data type represents only two values.

• Character

• Integer

• Boolean

• All of the above

Which of the following statements is used to typecast a variable that holds string data type?

• Variable_name=input(“Enter string value: ”)

• Variable_name=Str(input(“Enter string value: ”))

• Variable_name=String(input(“Enter string value: ”))

• Variable_name=Chr(input(“Enter string value: ”))

How much memory is allocated for a Boolean variable?

• 1 bit

• 1 byte

• 2 byte

• No limits

How much memory is allocated for a character variable?

• 1 bit

• 1 byte

• 2 byte

• No limits