[VARIABLES & DATA TYPES]

It is defined as the nouns of a programming language and are the entities that act or are acted upon.

• Operators

• Variables

• Arrays

Which of the following is not a data type?

• Symbolic Data

• Alphanumeric Data

• Numeric Data

Which is correct with respect to size of the datatypes?

• char > int > float

• int > char > float

• char < int < double

This data type is used to store a mixture of letters and numbers and symbols.

• String

• Character

• Boolean

This data type is used to store two values: TRUE or FALSE.

• String

• Character

• Boolean

1^st Statement: Not all variables in C++ language must have a data type.

2^nd Statement: A variable's data type determines the values that the variable can contain and the operations that can be performed on it.

• both statements are true

• the first statement is true and second statement is false

• the first statement is false and second statement is true.

• both statements are false.

1^st Statement: In naming a variable, the only special character allowed is the underscore (_).

2^nd Statement: A variable name must start with a letter, then can be followed by another letter or number.

• both statements are true

• the first statement is true and second statement is false

• the first statement is false and second statement is true.

• both statements are false.

1^st Statement: The size of float (single precision float data type) is 8 bytes.

2^nd Statement: And the size of double (double precision float data type) is 4 bytes.

• both statements are true

• the first statement is true and second statement is false

• the first statement is false and second statement is true.

• both statements are false.

1^st Statement: Integers are whole numbers that cannot store negative numbers.

2^nd Statement: C++ is case sensitive.

• both statements are true

• the first statement is true and second statement is false

• the first statement is false and second statement is true.

• both statements are false.

1^st Statement: The variables which can be accessed by all modules in a program is called global variables.

2^nd Statement: The default value of local variable will depend upon the type of variable.

• both statements are true

• the first statement is true and second statement is false

• the first statement is false and second statement is true.

• both statements are false.