Multiple Choice Questions and Answers on Javascript

Questions

1 The web development environment (JavaScript) offers which standard construct for data validation of the input entered by the user.

A Controlled loop constructs

B Server page access

C Client side Event

D Permit server-side

View Answer

Answer: Controlled loop constructs

2 The main purpose of a “Live Wire” in NetScape is to ________

A Create linkage between client side and server side

B Permit server side, JavaScript code, to connect to RDBMS

C Support only non relational database

D To interpret JavaScript code

View Answer

Answer: Permit server side, JavaScript code, to connect to RDBMS

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3 The script tag must be placed in __________

A the head tag

B the head or body

C the title or head

D after the body tag

View Answer

Answer: the head or body

4 A JavaScript program developed on a Unix Machine ________

A will throw errors and exceptions

B must be restricted to a Unix Machine only

C will work perfectly well on a Windows Machine

D will be displayed as a JavaScript text on the browser

View Answer

Answer: will work perfectly well on a Windows Machine

5 JavaScript is ideal to ________

A make computations in HTML simpler

B minimize storage requirements on the web server

C increase the download time for the client

D increase the loading time of the website

View Answer

Answer: minimize storage requirements on the web server

6 Which attribute is used to specify that the script is executed when the page has finished parsing? (only for external scripts)

A parse

B a sync

C defer

D type

View Answer

Answer: defer

7 JavaScript Code can be called by using ____________

A RMI

B Triggering Event

C Preprocessor

D Function/Method

View Answer

Answer: Function/Method

8 JavaScript can be written __________

A directly into JS file and included into HTML

B directly on the server page

C directly into HTML pages

D directly into the css file

View Answer

Answer: directly into JS file and included into HTML

9 Which of the following Attribute is used to include External JS code inside your HTML Document?

A src

B ext

C script

D link

View Answer

Answer: src

10 A proper scripting language is a __________

A High level programming language

B Assembly level programming language

C Machine level programming language

D Low level programming language

View Answer

Answer: High level programming language

11 What will be the output of the following JavaScript code?

MCQ on Javascript

A good day

B goodday

B error

B undefined

View Answer

Answer: goodday

12 What will be the output of the following JavaScript code?

MCQ on Javascript

A 0

B 1

C 2

D 5

View Answer

Answer: 1

13 What will be the output of the following JavaScript code?

MCQ on Javascript

A 5

B 10

C 50

D Error

View Answer

Answer: 50

14 What will be the output of the following JavaScript code?

MCQ on Javascript

A onetwo

B one two

C error

D undefined

View Answer

Answer: onetwo

15 What will be the output of the following JavaScript code?

MCQ on Javascript

A integer

B number

C string

D error

View Answer

Answer: string

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