Module 1 – JavaScript Basics MCQ Questions with Answers

1. What is JavaScript mainly used for?

a) Styling webpages
b) Adding interactivity to webpages
c) Structuring content
d) Server installation

2. Which tag is used to include JavaScript in HTML?

a) <js>
b) <script>
c) <javascript>
d) <code>

3. Where does JavaScript run?

a) Only on servers
b) Only in HTML
c) In browsers and servers (Node.js)
d) Only in CSS files

4. Which command is used to print messages to the console?

a) print()
b) show()
c) console.log()
d) echo()

5. Which symbol is used for comments in JavaScript?

a) <!-- -->
b) //
c) /* */
d) All of the above

6. Which keyword creates a block-scoped variable?

a) var
b) let
c) const
d) define

7. What is the data type of: "Hello"?

a) Boolean
b) Number
c) String
d) Undefined

8. What is the result of type of 10?

a) "digit"
b) "integer"
c) "number"
d) "value"

9. Which is NOT a JavaScript data type?

a) String
b) Boolean
c) Character
d) Object

10. What value does an uninitialized variable hold?

a) Null
b) Zero
c) Undefined
d) Nothing

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