157 + Mcqs in Caching And Debugging McqOptions

1.	/_What is the function of the closure compiler??
A.	Download faster
B.	Run faster
C.	Both Download faster and Run faster
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

2.	/_What is the necessity to have API??
A.	Guide to performing activities
B.	Describe particular task
C.	Both performing activities and Describe particular task
D.	None of the mentioned
Answer» C. Both performing activities and Describe particular task

Discussion

3.	/_What is the reason for avoiding the attributes property in the HTML DOM??
A.	Found unncessary
B.	Attributes don‚Äö√Ñ√¥t have attributes
C.	Attributes have attributes
D.	None of the mentioned
Answer» C. Attributes have attributes

Discussion

4.	/_What kind of path can the PHP file be??
A.	Absolute
B.	Relative
C.	Either Absolute or Relative
D.	Both Absolute and Relative
Answer» D. Both Absolute and Relative

Discussion

5.	/_Which program code doesn‚Äö√Ñ√¥t need preprocessing before being run??
A.	Text
B.	Script
C.	Both Text and Script
D.	None of the mentioned
Answer» C. Both Text and Script

Discussion

6.	/_In which format does JavaScript support external JavaScript??
A.	.js
B.	.php
C.	.js/php
D.	.jss
Answer» B. .php

Discussion

7.	/_Which algorithm supports blobs??
A.	Structured clone algorithm
B.	Double buffer algorithm
C.	Chen‚Äö√Ñ√¥s algorithm
D.	Retrieval algorithm
Answer» B. Double buffer algorithm

Discussion

8.	/_Which is the function that allows a worker to terminate itself??
A.	close()
B.	exit()
C.	terminate()
D.	halt()
Answer» B. exit()

Discussion

9.	/_The style property belongs to while of the following object??
A.	Element
B.	Window
C.	Location
D.	None of the mentioned
Answer» B. Window

Discussion

10.	/_A Blob URL can be created using which of the following function??
A.	createURL()
B.	createObjectURL()
C.	designURL()
D.	URLCreation()
Answer» C. designURL()

Discussion

11.	/_What is the next step after calling the startTimeLogging()??
A.	Interpret the code
B.	Compile the code
C.	Run the code
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

12.	/_What is the property to access the first child of a node??
A.	timestamp.Child1
B.	timestamp.Child(1)
C.	timestamp.Child(0)
D.	timestamp.firstChild
Answer» E.

Discussion

13.	/_Which of the following is not a JavaScript framework??
A.	Rico
B.	Prototype
C.	Joco
D.	DoJo
Answer» E.

Discussion

14.	/_Which of the following has a lesser benchmark time for using JQuery to access DOM versus pure JavaScript in milliseconds??
A.	Chrome JQueryDOM_
B.	Chrome JSDOM_benc
C.	Firefox JQueryDOM_
D.	Firefox JSDOM_benc
Answer» E.

Discussion

15.	/_What is a framework??
A.	User time efficiency
B.	Author time efficiency
C.	Both User time and Author time efficiency
D.	None of the mentioned
Answer» C. Both User time and Author time efficiency

Discussion

16.	/_What is the procedure to view the console in the Firefox??
A.	Tools->Error Console
B.	Tools->Error Window
C.	Help->Error Console
D.	None of the mentioned
Answer» B. Tools->Error Window

Discussion

17.	/_What is it called when we make a mistake in the script??
A.	Error
B.	Bug
C.	Mistake
D.	All of the mentioned
Answer» C. Mistake

Discussion

18.	/_How to find the index of a particular string??
A.	position()
B.	index()
C.	indexOf()
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

19.	/_In which part does the form validation occur??
A.	Client
B.	Server
C.	Both Client and Server
D.	None of the mentioned
Answer» C. Both Client and Server

Discussion

20.	/_What is the function used to stop capturing the ad hoc timing ??
A.	stopadhoc()
B.	stopTimer()
C.	stopTimeLogging()
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

21.	/_What are the benefits of closure compiler??
A.	Efficiency
B.	Code checking
C.	Both Efficiency and Code checking
D.	None of the mentioned
Answer» E.

Discussion

22.	/_In what way does the closure compiler help in checking the code??
A.	Warnings
B.	Suddenly aborts
C.	Rejects malicious inputs
D.	All of the mentioned
Answer» B. Suddenly aborts

Discussion

23.	/_The object that looks to the thread that creates it is?
A.	Window
B.	Worker
C.	Element
D.	Hash
Answer» C. Element

Discussion

24.	/_Which property is used to manage multiple event handlers??
A.	onmessage
B.	onerror
C.	both onmessage and onerror
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

25.	/_The blobs are broken into smaller pieces using which of the following functions??
A.	partition()
B.	cut()
C.	sliceall()
D.	slice()
Answer» E.

Discussion

26.	/_Which method facilitates in uploading a Blob to a server??
A.	send()
B.	pass()
C.	upload()
D.	store()
Answer» B. pass()

Discussion

27.	/_When does a memory leak happen??
A.	Browser doesn‚Äö√Ñ√¥t release memory from objects unnecessary
B.	Browser releases too many memories
C.	All of the mentioned
D.	None of the mentioned
Answer» B. Browser releases too many memories

Discussion

28.	_ What is the purpose of the Attr object in the HTML DOM?$?
A.	Used to focus on a particular part of the HTML page
B.	HTML Attribute
C.	Used to arrange elements
D.	None of the mentioned
Answer» C. Used to arrange elements

Discussion

29.	_ What are the benefits of closure compiler?$?
A.	Efficiency
B.	Code checking
C.	Both Efficiency and Code checking
D.	None of the mentioned
Answer» E.

Discussion

30.	_ What is the function used to stop capturing the ad hoc timing ?$?
A.	stopadhoc()
B.	stopTimer()
C.	stopTimeLogging()
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

31.	_ The object that looks to the thread that creates it is$?
A.	Window
B.	Worker
C.	Element
D.	Hash
Answer» C. Element

Discussion

32.	_ In what way does the closure compiler help in checking the code?$?
A.	Warnings
B.	Suddenly aborts
C.	Rejects malicious inputs
D.	All of the mentioned
Answer» B. Suddenly aborts

Discussion

33.	_ Which of the following ensures additional interactivity mechanism?$?
A.	WAI ARIA
B.	Geolocation API
C.	Object API
D.	None of the mentioned
Answer» B. Geolocation API

Discussion

34.	_ When does one use the method startOverlays()?$?
A.	Edit ad request
B.	Delete ad request
C.	Create ad request
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

35.	_ Which of the following attribute takes the source of the PHP file?$?
A.	img
B.	src
C.	source
D.	none of the mentioned
Answer» C. source

Discussion

36.	_ Which of the following is the method used to add an element to the desired location?$?
A.	add.element()
B.	element.add()
C.	element.appendChild()
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

37.	_ Which of the following is a way to retain an object in memory?$?
A.	Console Log
B.	Closures
C.	Destory objects
D.	All of the mentioned
Answer» B. Closures

Discussion

38.	_ The blobs are broken into smaller pieces using which of the following functions?$?
A.	partition()
B.	cut()
C.	sliceall()
D.	slice()
Answer» E.

Discussion

39.	_ Which property is used to manage multiple event handlers?$?
A.	onmessage
B.	onerror
C.	both onmessage and onerror
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

40.	_ When does a memory leak happen?$?
A.	Browser doesn‚Äö√Ñ√¥t release memory from objects unnecessary
B.	Browser releases too many memories
C.	All of the mentioned
D.	None of the mentioned
Answer» B. Browser releases too many memories

Discussion

41.	_ Which method facilitates in uploading a Blob to a server?$?
A.	send()
B.	pass()
C.	upload()
D.	store()
Answer» B. pass()

Discussion

42.	_ Why do we need to create locally scoped variables to hold value?$?
A.	To optimize the testing process
B.	To increase the speed
C.	To minimize memory usage
D.	To cache the reference document.location
Answer» E.

Discussion

43.	_ If we have an object r and want to know if it is a Range object, we can write:$?
A.	r typeof Range
B.	r is Range
C.	r equals Range
D.	r instanceof Range
Answer» E.

Discussion

44.	_ How can you find a client‚Äö√Ñ√¥s browser name?$?
A.	browser.name
B.	navigator.appName
C.	client.navName
D.	none of the mentioned
Answer» C. client.navName

Discussion

45.	_ What is the purpose of the function eval?$?
A.	Executes the string as an integer
B.	Gets the value of the string
C.	Executing string as JavaScript
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

46.	_ What is the purpose of a JavaScript debugger?$?
A.	Correction of errors
B.	Placing script execution under control
C.	Correction of errors & Placing script execution under control
D.	None of the mentioned
Answer» C. Correction of errors & Placing script execution under control

Discussion

47.	_ Which of the following is the window that the Firefox sends the error messages to?$?
A.	Bug Window
B.	Error Issues
C.	Error Window
D.	Error Console
Answer» E.

Discussion

48.	_ What is the purpose of the mimeTypes property of a plug-in entry?$?
A.	Contains MIME properties
B.	Contains MIME sizes
C.	Contains MIME types
D.	None of the mentioned
Answer» D. None of the mentioned

Discussion

49.	_ Which is the function that is called to validate a data?$?
A.	validate()
B.	valid()
C.	validation()
D.	none of the mentioned
Answer» E.

Discussion

50.	_ Which object is the top of the hierarchy?$?
A.	Window Object
B.	Document Object
C.	Form Object
D.	Form Control Elements
Answer» B. Document Object

Discussion

Explore topic-wise MCQs in Testing Subject.

*/*_What is the function of the closure compiler??

*/*_What is the necessity to have API??

*/*_What is the reason for avoiding the attributes property in the HTML DOM??

*/*_What kind of path can the PHP file be??

*/*_Which program code doesn‚Äö√Ñ√¥t need preprocessing before being run??

*/*_In which format does JavaScript support external JavaScript??

*/*_Which algorithm supports blobs??

*/*_Which is the function that allows a worker to terminate itself??

*/*_The style property belongs to while of the following object??

*/*_A Blob URL can be created using which of the following function??

*/*_What is the next step after calling the startTimeLogging()??

*/*_What is the property to access the first child of a node??

*/*_Which of the following is not a JavaScript framework??

*/*_Which of the following has a lesser benchmark time for using JQuery to access DOM versus pure JavaScript in milliseconds??

*/*_What is a framework??

*/*_What is the procedure to view the console in the Firefox??

*/*_What is it called when we make a mistake in the script??

*/*_How to find the index of a particular string??

*/*_In which part does the form validation occur??

*/*_What is the function used to stop capturing the ad hoc timing ??

*/*_What are the benefits of closure compiler??

*/*_In what way does the closure compiler help in checking the code??

*/*_The object that looks to the thread that creates it is?

*/*_Which property is used to manage multiple event handlers??

*/*_The blobs are broken into smaller pieces using which of the following functions??

*/*_Which method facilitates in uploading a Blob to a server??

*/*_When does a memory leak happen??

_ What is the purpose of the Attr object in the HTML DOM?$?

_ What are the benefits of closure compiler?$?

_ What is the function used to stop capturing the ad hoc timing ?$?

_ The object that looks to the thread that creates it is$?

_ In what way does the closure compiler help in checking the code?$?

_ Which of the following ensures additional interactivity mechanism?$?

_ When does one use the method startOverlays()?$?

_ Which of the following attribute takes the source of the PHP file?$?

_ Which of the following is the method used to add an element to the desired location?$?

_ Which of the following is a way to retain an object in memory?$?

_ The blobs are broken into smaller pieces using which of the following functions?$?

_ Which property is used to manage multiple event handlers?$?

_ When does a memory leak happen?$?

_ Which method facilitates in uploading a Blob to a server?$?

_ Why do we need to create locally scoped variables to hold value?$?

_ If we have an object r and want to know if it is a Range object, we can write:$?

_ How can you find a client‚Äö√Ñ√¥s browser name?$?

_ What is the purpose of the function eval?$?

_ What is the purpose of a JavaScript debugger?$?

_ Which of the following is the window that the Firefox sends the error messages to?$?

_ What is the purpose of the mimeTypes property of a plug-in entry?$?

_ Which is the function that is called to validate a data?$?

_ Which object is the top of the hierarchy?$?

/_What is the function of the closure compiler??

/_What is the necessity to have API??

/_What is the reason for avoiding the attributes property in the HTML DOM??

/_What kind of path can the PHP file be??

/_Which program code doesn‚Äö√Ñ√¥t need preprocessing before being run??

/_In which format does JavaScript support external JavaScript??

/_Which algorithm supports blobs??

/_Which is the function that allows a worker to terminate itself??

/_The style property belongs to while of the following object??

/_A Blob URL can be created using which of the following function??

/_What is the next step after calling the startTimeLogging()??

/_What is the property to access the first child of a node??

/_Which of the following is not a JavaScript framework??

/_Which of the following has a lesser benchmark time for using JQuery to access DOM versus pure JavaScript in milliseconds??

/_What is a framework??

/_What is the procedure to view the console in the Firefox??

/_What is it called when we make a mistake in the script??

/_How to find the index of a particular string??

/_In which part does the form validation occur??

/_What is the function used to stop capturing the ad hoc timing ??

/_What are the benefits of closure compiler??

/_In what way does the closure compiler help in checking the code??

/_The object that looks to the thread that creates it is?

/_Which property is used to manage multiple event handlers??

/_The blobs are broken into smaller pieces using which of the following functions??

/_Which method facilitates in uploading a Blob to a server??

/_When does a memory leak happen??