Fundamentals of Front End Development MCQs with Answers
Practice important Fundamentals of Front End Development MCQs with answers and explanations.
Chapter: 91
Q1021:
Which of the following does NOT use AJAX for updating content?
A. Facebook
B. Gmail
C. YouTube
D. Microsoft Word
Correct Answer:
D
Chapter: 91
Q1022:
Fill in the blank: AJAX is based on internet standards and combines XMLHttpRequest with ______.
A. HTML
B. JavaScript/DOM
C. CSS
D. PHP
Correct Answer:
B
Chapter: 91
Q1023:
What is the primary benefit of using AJAX in web applications?
A. Faster page reloads
B. No need for any server-side programming
C. Reduced need for client-side scripting
D. Partial page updates without reloading
Correct Answer:
D
Chapter: 91
Q1024:
Fill in the blank: AJAX is a technology that enables web pages to update ______ while the user is interacting with the page.
A. intermittently
B. synchronously
C. asynchronously
D. manually
Correct Answer:
C
Chapter: 92
Q1025:
What popular feature did Google introduce in 2005 using AJAX?
A. Google Maps
B. Google Suggest
C. Google Drive
D. Google Docs
Correct Answer:
B
Chapter: 92
Q1026:
Which technology allows Google Suggest to update the page without reloading?
A. JavaScript
B. CSS
C. HTML
D. PHP
Correct Answer:
A
Chapter: 92
Q1027:
Fill in the blank: AJAX was popularized in 2005 by ______.
A. Google Search
B. Google Suggest
C. Google Maps
D. Google Drive
Correct Answer:
B
Chapter: 92
Q1028:
What is one of the benefits of using AJAX in web applications like Google Suggest?
A. Improved page reloading speed
B. Ability to load all content at once
C. No need for JavaScript
D. Ability to update the page without reloading
Correct Answer:
D
Chapter: 92
Q1029:
Fill in the blank: AJAX helps to ______ a webpage without a full page reload.
A. slow down
B. refresh
C. update
D. close
Correct Answer:
C
Chapter: 92
Q1030:
What does AJAX stand for?
A. Asynchronous JavaScript and XML
B. Asynchronous JavaScript and XHTML
C. Automated JavaScript and XML
D. Asynchronous Java and XML
Correct Answer:
A
Chapter: 92
Q1031:
Fill in the blank: AJAX was introduced to improve webpage ______.
A. design
B. loading times
C. performance
D. color scheme
Correct Answer:
C
Chapter: 92
Q1032:
Which of the following is NOT a feature of AJAX?
A. Update page content asynchronously
B. Improve page performance
C. Require full page reloads
D. Send and receive data without reloading
Correct Answer:
C
Chapter: 92
Q1033:
AJAX allows for updates to a web page without ______.
A. changing the entire document
B. changing the style
C. closing the browser
D. waiting for user input
Correct Answer:
A
Chapter: 92
Q1034:
Fill in the blank: Google Suggest is an example of AJAX being used to ______.
A. reload the entire page
B. update search suggestions dynamically
C. improve server performance
D. create static web content
Correct Answer:
B
Chapter: 93
Q1035:
What is the keystone object in AJAX for exchanging data with a server?
A. XMLHttpRequest
B. ActiveXObject
C. fetch
D. XMLHttpRequest2
Correct Answer:
A
Chapter: 93
Q1036:
Which method is used to send a request to a server in XMLHttpRequest?
A. open()
B. send()
C. setRequestHeader()
D. get()
Correct Answer:
B
Chapter: 93
Q1037:
Fill in the blank: To create an XMLHttpRequest object in modern browsers, use the syntax ______.
A. variable = new ActiveXObject("Microsoft.XMLHTTP")
B. variable = new XMLHttpRequest()
C. variable = XMLHttpRequest()
D. variable = new HTTPRequest()
Correct Answer:
B
Chapter: 93
Q1038:
What method is used to add HTTP headers to the request in XMLHttpRequest?
A. setRequestHeader()
B. addHeader()
C. open()
D. send()
Correct Answer:
A
Chapter: 93
Q1039:
Which parameter in the open() method specifies if the request is asynchronous?
A. url
B. method
C. async
D. header
Correct Answer:
C
Chapter: 93
Q1040:
Fill in the blank: To perform a POST request and send data to the server, use the method ______.
A. open()
B. send()
C. setRequestHeader()
D. get()
Correct Answer:
B