ITI COPA JavaScript questions and answers most important MCQ for computer operator and programming assistant 2023-24 exam paper preparation ...
ITI COPA JavaScript questions and answers most important MCQ for computer operator and programming assistant 2023-24 exam paper preparation with pdf
ITI COPA JavaScript Questions PDF
1. NaN
stands for_________.
a) Nano
b) NanTech
c) Not a number
d) New attacted
Nematic
Ans. c
2. ++
operator in Java Script is ____ Operator.
a) Unary
b) Positive
c) Increment
d) Addition
Ans. a
3. A
translator is described as ________ software.
a) Application
b) System
c) Utility
d)
Open Source
Ans. b
4. BOM stands for______ .
(a) Browser Object Model
(b)
Browser Opening Model
(c) Brown Object Model
(d)
Browser Object Mission
Ans.
a
5. What is the process of writing instruction to be get executed by the computer?
A Debugging
B Executing
C Presenting
D Programming
Ans. d
6. Which is a statement terminator in javascript?
A ,
B ;
C :
D . .
Ans. b
7. Which programming language’s syntax influences javascript syntex?
A C
B COBOL
C Java
D JDK
Ans. a
8. Which web server provides good customer support if it had any issues?
A Apache
B IIS
C Lite speed
D Nginx
Ans. b
9. Which key is used to declare a variable in javascript?
A const
B dec
C dim
D var
Ans. d
10. Which is a variable seperator if
more than one variable declared in one statement?
A ,
B :
C -
D /
Ans. a
11. Which brackets is used to write array in java script?
A Curve bracket
B Square bracket
C Curly bracket
D Corner bracket
Ans. b
12. Which bracket is used to write
object in javascript?
A Curve bracket
B Square bracket
C Curly bracket
D Corner bracket
Ans. c
13. How many types of operation are there in javascript?
A 3
B 4
C 6
D 8
Ans. d
14. What is the purpose module (%) operator in javascript?
A Percentage value
B Product value
C Remainder value
D Quotient value
Ans. c
15. How many part are there in ‘For’ loop?
A 2
B 3
C 4
D 5
Ans. b
16. Which part in loop evaluates the conditions?
A Condition part
B Increment /Decrement part
C Initialisation part
D Looping part
Ans. a
17. How many types of error are there in javascript
programming?
A 3
B 4
C 6
D
8
Ans. a
18. How many different values can be returned by the error name property in
javascript ?
A 3
B 4
C 5
D
6
Ans. d
19. Which object method is used to return the value rounded down to its nearest
interger?
A abs()
B ceil()
C floor()
D round()
Ans. c
20. Which special variable holds more than one value at a time?
A Array
B Element
C Function
D Object
Ans. a
21. Which is the parameter name separator in javascript?
A ,
B :
C -
D /
Ans. a
22. Which function in javassript converts a number to a string?
A Num()
B Str()
C String()
D to string()
Ans. d
23. Which allows developers to bundle all functionality under a unique
application –specific name?
A Class
B Name space
C Object
D Property
Ans. b
24. Which is a valid js code to sort element of an array
tracle?
A Trade.sort:
B Trade.sort();
C Sort.trade();
D Sort.(trade);
Ans. b
25. What is the full form of TOC?
A Text of content
B Time of calculation
C Table of content
D Terminator of content
Ans. c