TLE - MULTIPLE CHOICE : Q4 M1

Which of the following is not part of the three data type categories?

• a. Primary data types

• b. Compound data types

• c. Reference data types

• d. Special data types

_______ are often used in conditional testing

• a. Null data types

• b. String data types

• c. Boolean data types

• d. Number data types

The array index starts from:

• a. -1

• b. 0

• c. 1

________ is the result of dividing a nonzero number by 0.

• a. infinity

• b. -infinity

• c. NaN

Null value = ________

• a. value undefined

• b. represented using e-notation

• c. no value

• d. can hold only two values: true or false

The typeof operator:

• a. Cannot be used without parenthesis

• b. Cannot be used with parenthesis

• c. Can be used with or without parenthesis

• d. Can only be used without parenthesis

Composite data types:

• String

• Array

• Unidentified

• Number

Integers value will be accurate up to __ digits in JavaScript

• 25

• 30

• 20

• 15

A variable has been declared, but has not been assigned a value

• Undefined data type

• Null data type

• Object data type

• Function data type

Data type that allows us to store collections of data

• Number

• Array

• Object

• String