Which of the following represents an undefined value in JavaScript?
A). 'undefined'
B). null
C). undefined
D). 'null'
What does the expression (5 > 3) evaluate to in JavaScript?
A). 1
B). 0
C). undefined
D). null
What is the result of the expression 10 + '5' in JavaScript?
A). 105
B). '15'
C). 15
D). '105'
What is the value of the expression '20' - 10 in JavaScript?
A). 10
B). '10'
C). '2010'
D). Error
What data type does the value true represent in JavaScript?
A). Number
B). String
C). Boolean
D). Object
Which of the following represents a numeric value in JavaScript?
A). 'Hello'
B). 1
C). 42
D). [1, 2, 3]
What is the value of the expression (10 * 3) / 2 in JavaScript?
A). 15
B). 30
C). 20
D). 25
Which of the following represents a string value in JavaScript?
A). {name: 'John', age: 30}
B). 42
C). 'Hello, World!'
D). 1
Which of the following represents a null value in JavaScript?
A). undefined
B). 'null'
C). null
D). 0
Which of the following represents a Boolean value in JavaScript?
A). 'true'
B). '42'
C). 'null'
D). 'undefined'