ITI COPA JavaScript questions and answers most important MCQ for computer operator and programming assistant exam paper preparation with pdf...
ITI COPA JavaScript questions and answers most important MCQ for computer operator and programming assistant 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