AJAX Test Fiverr
Which of the following request types should be used with AJAX?
HTTP GET request for retrieving data (which will not change for that URL)
HTTP POST request for retrieving data (which will not change for that URL)
HTTP GET should be used when the state is updated on the server
HTTP POST should be used when the state is updated on the server
When doing an AJAX request, will the page be scrolled back to top as with normal requests?
Yes
No
Consider the following function:
function foo ()
return 5;
}
What will the following code do?
var myVar = foo;
Assign the integer 5 to the variable myVar
Assign the pointer to function foo to myVar
Do nothing
Throw an exception
None of the above
Which of the following is/are not addressed by AJAX?
Partial page update
Offline browsing
Server side scripting
All of the above
When may asynchronous requests be used?
To submit data to the server
To retrieve data from the server
To load additional code from the server
To download an image
All of the above
Can AJAX be used with offline pages?
yes
no
What is the correct way to have the function checkState called after 10 seconds?
window.setTimeout(checkState, 10);
window.setTimeout(checkState, 10000);
window.setTimeout(checkState(), 10);
None of the above
document.write ("Hello"); will pop a dialog box with "Hello" in it.
true
false
The format of an HTTP request is given below:
<request-line>
<headers>
<blank line>
[<request-body>]
Which of the following is not passed in the request-line?
Type of request
Resource to access
Version of HTTP
Browser name
None of the above
Is it possible to make a page “reload-safe” when using AJAX?
no
yes, if each AJAX request modifies the server side context, which would render a page similar to the actual JS modified page, if reloaded.
Which of the following is/are true regarding AJAX?
It’s an engine developed by Microsoft to load web pages faster
It’s merely a concept with many implementation methods (XMLHttpRequest, iFrames…)
It’s a server side scripting language used to serve partial parts of a webpage
It’s a good way to reduce network traffic, if used correctly
None of the above
Which of the following cannot be resolved by using AJAX?
Partial page processing
Unresponsiveness of web pages
Server side communication initiation
Server crashes (failover)
None of the above
Can a client AJAX application be used to fetch and execute some JavaScript code?
yes
no
Which of the following is not a JavaScript operator?
new
delete
this
typeof
All of the above are Javascript operators
The X in AJAX refers to XML, but is it possible to make a request for plain text data by using AJAX?
yes
no
Is the loading of an AJAX enabled web page any different from the loading of a normal page?
No
Yes
Which of the following cannot be resolved by using AJAX?
Partial page processing
Unresponsiveness of web pages
Server side communication initiation
Server crashes (failover)
None of the above
Which HTTP server does AJAX require?
Apache
Sun application server
lighttpd
Microsoft web server
Any HTTP server will work
Which of the following is a block comment in JavaScript?
<!– –>
/* */
//
#
–[[ ]]
Can AJAX be used with HTTPS (SSL)?
yes
no
Is it possible to access the browser cookies from a javascript application?
yes
no
The server returns data to the client during an AJAX postback. Which of the following is correct about the returned data?
It only contains the data of the page elements that need to be changed
It contains both the data of the whole page and the data that needs to be changed in separate blocks
It contains the data of the whole page
It may contain anything
None of the above
What language does AJAX use on the client side?
JavaScript
AppleScript
PHP
Ruby
Java
Which language does AJAX use on the server side?
JavaScript
PHP
Java
Ruby
Any language supported by the server
Which of the following is not a valid variable name in JavaScript?
_my_var
2myVar
MY_VAR
__MyVar2__
All are valid
What is NOSCRIPT tag for?
To prevent the page scripts from executing
To shield a part of a page from being modified by JS (like aDiv.innerHTML = ‘something’ has no effect)
To enclose text to be displayed if the browser doesn’t support JS
NOSCRIPT tag doesn’t exist
None of the above
What is the standardized name of JavaScript?
Java
NetscapeScript
ECMAScript
XMLScript
WebScript
Can AJAX be used with PHP?
yes
no
Javascript uses static bindings.
true
false
Which of the following are drawbacks of AJAX?
The browser back button cannot be used in most cases
It makes the server and client page representation synchronization more difficult
It loads the server too much
It’s not supported by older browsers
It augments the used bandwidth significantly
Can an HTML form be sent with AJAX?
yes
no
What is the correct syntax to create an array in JavaScript?
var array = Array.new;
var array = [];
var array = new Array;
var array = new Array ();
None of the above
Can an AJAX application communicate with other applications on the client computer?
Yes
No
What is the correct syntax to include a script named myScript.js into a page?
<script href=”myScript.js”>
<script name=”myScript.js”>
<script src=”myScript.js”>
<script root=”myScript.js”>
Is it possible to make some system calls on the client with AJAX?
Yes
No
Which of the following status codes denotes a server error?
100
200
300
501
500
Does JavaScript 1.5 have exception handling?
yes
no
When a user views a page with JavaScript in it, which machine executes the script?
The client machine running the Web Browser
The server serving the JavaScript
A central JavaScript server like root DNS
None of the abov
Which of the following browsers provide XMLHttpRequest property?
Internet Explorer 5
Internet Explorer 6
Internet Explorer 7
Firefox 2.0
Safari 3.0
What is true regarding XMLHttpRequest.abort()?
It can only be used with async requests
It will remove the onreadystatechange event handler
It will send an abort message to the remote server
It changes readyState to 4 (aborted)
None of the above
What is the third (async) parameter of the XMLHttpRequest open method?
If true, the request doesn’t return anything.
If true, the javascript engine is blocked while making the request
If true, the send method returns immediately
If true, the request object is destroyed when ‘send’ is executed
If true, callbacks are executed
Which of the following describes the term ‘Asynchronous’ correctly?
Ability to handle processes independently from other processes
Processes are dependent upon other processes
Processes are not fully dependent on other processes
None of the above
How can you create an XMLHttpRequest under Internet Explorer 6?
var oReq = new XMLHttpRequest ();
var oReq = new ActiveXObject (“MSXML2.XMLHTTP.3.0”);
var oReq = new IEHttpRequest (“XML”);
None of the above
Is JavaScript the same as Java?
yes
no
In the following list, which ones are used to fetch the result data of an XMLHttpRequest?
responseData
responseBody
responseString
responseText
responseXML
You want to update the following element with the XMLHttpRequest status. Which of the following approaches is correct for the
purpose?
<div id=”statusCode”></div>
var myDiv = document.getElementById (“statusCode”); myDiv.innerHTML = req.statusCode;
var myDiv = document.getElementById (“statusCode”); myDiv.innerHTML = req.status;
var myDiv = document.getElementById (“statusCode”); myDiv.setStatus (req.statusCode);
var myDiv = document.getElementById (“statusCode”); myDiv.status = req.status;
None of the above
It might be needed to set the request content-type to XML explicitly. How can you do so for an XMLHttpRequest Object?
myReq.setContentType (“text/xml”);
myReq.contentType = “text/xml”;
myReq.overrideContentType (“xml”);
myReq.contentType = “xml”;
myReq.setRequestHeader (“Content-Type”, “text/xml”);
Can WebDav methods like PROPFIND be used with XMLHttpRequest.open()?
Yes
No
In the following list, which states are valid?
XMLHttpRequest.readyState
0, The request is not initialized
1, The request has been set up
2, The request has been sent
3, The request is in process
4, The request is complete
All of the above.
What is the correct way to execute the function “calc()” when an XMLHttpRequest is loaded?
myRequest.onreadystatechange = calc;
myRequest.onload = calc;
myRequest.execute = calc;
myRequest.addCallback (calc, “loaded”);
None of the above
Can you call responseBody or responseText to get a partial result when the readyState of an XMLHttpRequest is 3(receiving)?
Yes
No
What should be called before ‘send ()’ to prepare an XMLHttpRequest object?
prepare ()
open ()
init ()
build ()
None of the above
What is the common way to make a request with XMLHttpRequest?
myReq.request();
myReq.get();
myReq.post(null);
myReq.send(null);
myReq.sendRequest(null);
Is it possible to create and manipulate an image on the client with AJAX?
yes
no
Is it always possible to make requests to multiple websites with different domain names from an AJAX client script?
yes
no
Can you start multiple threads with JavaScript?
Yes
No
Can AJAX be used to move files on the client-side?
Yes
No
AJAX Fiverr Test 2020