m2-r5 mcq questions with answers

M2-R5 MCQ Questions with Answers | O Level July 2025 Preparation

Prepare for your O Level Web Designing MCQs and boost your O Level July 2025 preparation with this handpicked list of M2-R5 MCQ questions. These include both JavaScript MCQ and AngularJS MCQs curated from previous NIELIT M2-R5 questions to help you revise thoroughly.

1. Which company developed JavaScript?
   A) Mozilla
   B) Netscape
   C) Google
   D) IBM
   Answer: B) Netscape

2. Which symbol is used for comments in JavaScript?
   A) //
   B) #
   C) <!– –>
   D) **
   Answer: A) //

3. What is the correct syntax for referring to an external script called “abc.js”?
   A) <script name="abc.js">
   B) <script src="abc.js">
   C) <script href="abc.js">
   D) <script link="abc.js">
   Answer: B) <script src="abc.js">

4. How do you write “Hello World” in an alert box?
   A) msg(“Hello World”);
   B) alertBox(“Hello World”);
   C) msgBox(“Hello World”);
   D) alert(“Hello World”);
   Answer: D) alert(“Hello World”);

5. Which of the following is not a JavaScript data type?
   A) Undefined
   B) Number
   C) Float
   D) Boolean
   Answer: C) Float

6. Which function is used to parse a string to int in JavaScript?
   A) Integer.parse()
   B) parseInt()
   C) getInt()
   D) parseInteger()
   Answer: B) parseInt()

7. Which keyword is used to define a function in JavaScript?
   A) define
   B) function
   C) method
   D) void
   Answer: B) function

8. JavaScript is a ___ language.
   A) Compiled
   B) Interpreted
   C) Assembly
   D) Machine
   Answer: B) Interpreted

9. Which method removes the last element from an array?
   A) pop()
   B) remove()
   C) shift()
   D) delete()
   Answer: A) pop()

10. How do you create an array in JavaScript?
    A) let arr = (1,2,3);
    B) let arr = {1,2,3};
    C) let arr = [1,2,3];
    D) let arr = <1,2,3>;
    Answer: C) let arr = [1,2,3];

11. Which built-in method returns the length of the string?
    A) size()
    B) length()
    C) index()
    D) len()
    Answer: B) length

12. What is the output of typeof NaN?
    A) number
    B) string
    C) undefined
    D) object
    Answer: A) number

13. Which operator is used for strict equality in JavaScript?
    A) =
    B) ==
    C) ===
    D) !==
    Answer: C) ===

14. What is the default value of a JavaScript variable?
    A) null
    B) 0
    C) undefined
    D) empty
    Answer: C) undefined

15. What does isNaN("text") return?
    A) true
    B) false
    C) 0
    D) error
    Answer: A) true

16. Which of the following methods can be used to round a number?
    A) Math.floor()
    B) Math.round()
    C) Math.ceil()
    D) All of the above
    Answer: D) All of the above

17. Which function is used to print in the console?
    A) print()
    B) write()
    C) console.log()
    D) echo()
    Answer: C) console.log()

18. Which symbol is used for single-line comments in JavaScript?
    A) /*
    B) #
    C) //
    D) <!–
    Answer: C) //

19. Which method adds new items to the end of an array?
    A) push()
    B) append()
    C) insert()
    D) join()
    Answer: A) push()

20. Which object is the root of all JavaScript objects?
    A) Window
    B) Global
    C) Object
    D) Main
    Answer: C) Object

✅ AngularJS MCQs

21. 21. AngularJS is based on which architecture?
        A) MVP
        B) MVC
        C) MVVM
        D) OOP
        Answer: B) MVC

    22. Which directive is used to bind data in AngularJS?
        A) ng-bind
        B) ng-model
        C) ng-data
        D) ng-controller
        Answer: A) ng-bind

    23. Which symbol is used for AngularJS expressions?
        A) {{ }}
        B) (( ))
        C) [[ ]]
        D) << >>
        Answer: A) {{ }}

    24. Which directive initializes an AngularJS application?
        A) ng-start
        B) ng-init
        C) ng-app
        D) ng-model
        Answer: C) ng-app

    25. Which directive repeats a set of HTML elements?
        A) ng-repeat
        B) ng-for
        C) ng-loop
        D) ng-each
        Answer: A) ng-repeat

    26. How do you create a controller in AngularJS?
        A) app.control()
        B) app.controller()
        C) app.createController()
        D) app.addController()
        Answer: B) app.controller()

21. AngularJS expressions are written inside…
    A) {}
    B) {{}}
    C) %%
    D) ##
    Answer: B) {{}}

22. What does the ng-model directive bind to?
    A) HTML tags
    B) Controller
    C) Form inputs
    D) JavaScript functions
    Answer: C) Form inputs

23. Which directive is used for conditional rendering?
    A) ng-if
    B) ng-condition
    C) ng-show
    D) ng-hide
    Answer: A) ng-if

24. Which module is required for forms in AngularJS?
    A) ng-form
    B) ng-model
    C) ngFormsModule
    D) ngFormModule
    Answer: A) ng-form

25. AngularJS filters are used to…
    A) Bind controllers
    B) Filter HTML tags
    C) Format data
    D) Encrypt data
    Answer: C) Format data

26. Which filter is used to sort data?
    A) orderBy
    B) filter
    C) sortBy
    D) ngSort
    Answer: A) orderBy

27. Which directive is used for validation in AngularJS?
    A) ng-validate
    B) ng-required
    C) ng-check
    D) ng-valid
    Answer: B) ng-required

28. What is the output of {{ 5 + 10 }} in AngularJS?
    A) 15
    B) 5 + 10
    C) Error
    D) undefined
    Answer: A) 15

29. Which directive is used to display content conditionally?
    A) ng-hide
    B) ng-if
    C) ng-show
    D) All of the above
    Answer: D) All of the above

30. What is the use of $scope in AngularJS?
    A) Store JavaScript libraries
    B) Bind view and controller
    C) Link CSS
    D) Compile HTML
    Answer: B) Bind view and controller

31. Which directive is used to include HTML pages?
    A) ng-include
    B) ng-html
    C) ng-append
    D) ng-copy
    Answer: A) ng-include

32. Which of the following is an AngularJS module?
    A) angular.module()
    B) angular.controller()
    C) angular.bind()
    D) angular.object()
    Answer: A) angular.module()

33. AngularJS was developed by?
    A) Microsoft
    B) Google
    C) Facebook
    D) IBM
    Answer: B) Google

34. Which keyword is used for dependency injection in AngularJS?
    A) @inject
    B) $inject
    C) inject()
    D) ng-inject
    Answer: B) $inject

✅ Mixed MCQs (Advanced)

41. What is the output of typeof null?
    A) null
    B) undefined
    C) object
    D) string
    Answer: C) object

42. Which method is used to convert a JSON string into a JavaScript object?
    A) JSON.toObject()
    B) JSON.parse()
    C) parse.JSON()
    D) object.JSON()
    Answer: B) JSON.parse()

43. What does NaN stand for?
    A) Not a Null
    B) Not a Number
    C) Null and None
    D) Not an Name
    Answer: B) Not a Number

44. Which of the following is a valid AngularJS directive?
    A) ng-value
    B) ng-check
    C) ng-size
    D) ng-css
    Answer: A) ng-value

45. What is the use of the splice() method?
    A) Add or remove elements
    B) Split strings
    C) Merge arrays
    D) Find elements
    Answer: A) Add or remove elements

46. Which directive is used to handle click events in AngularJS?
    A) ng-click
    B) ng-tap
    C) ng-event
    D) ng-hit
    Answer: A) ng-click

47. Which statement is true about JavaScript arrays?
    A) Arrays are fixed in size
    B) Arrays can hold multiple data types
    C) Arrays are only numeric
    D) Arrays cannot be nested
    Answer: B) Arrays can hold multiple data types

48. How can you redirect a page using JavaScript?
    A) window.location.href = “url”;
    B) document.href = “url”;
    C) location = “url”;
    D) window.redirect(“url”);
    Answer: A) window.location.href = “url”;

49. Which directive prevents form submission if a field is empty?
    A) ng-model
    B) ng-submit
    C) ng-required
    D) ng-value
    Answer: C) ng-required

50. Which JavaScript keyword is used to declare a constant variable?
    A) const
    B) var
    C) let
    D) constant
    Answer: A) const

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