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Test your basic knowledge |
Ajax
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 36 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The real value of XML HTTP request is in the way it is ________.
send (content)
Ok all good
$
asynchronous
2. The core Javascript object that makes Ajax possible. Can fetch files from a web server
asynchronous requests
Bad Request
JSON (Javascript Object Notation)
XMLHttpRequest object
3. At its core ________ is a way of showing data in a text format that is parsable. Without an associated style file.
Ajax.Request constructor
Ok all good
XML
Prototype ajax request
4. Auto-completes from an array of choices
Autocompleter.Local
$
Unauthorized
object document
5. An object that allows requests to be made to the server without interrupting other browser tasks. Its an object and objects contain properties. The properties are: readyState - responseText - responseXML - status - statusText
set of options
open
JSON (Javascript Object Notation)
XTML HTTP Request (XHR object)
6. It can access surrounding local variables
onreadystatechange
inner anonymous function
DOM (Document Object Model)
XTML HTTP Request (XHR object)
7. XMLHttpRequest to pass header name and get response.
Autocompleter.Local
getResponseHeader ("headername")
$
asynchronous
8. 404 status message
Autocompleter.Local
Not Found
XTML HTTP Request (XHR object)
XML
9. Fetches and displays list of choices using Ajax
Autocompleter.Local
Ajax.Autocompleter
object document
XTML HTTP Request (XHR object)
10. XML Allows you to use __________ as well because XML is a document.
DOM inspector
$
Bad Request
Unauthorized
11. This holds the status of the XMLHttpRequest - is set several times by the web server when the server is processing the request - values from 0-4 (4 implies that the request is completely processed by server)
security restrictions
JSON (Javascript Object Notation)
XML
readyState property
12. Objects have properties such as the title tag on a page is a property of _________. Properties themselves are objects.
object document
Ajax.Request constructor
Not Found
ajax (Asynchronous Javascript + XML)
13. AJAX files ______________: Cannot be run from web page stored on hard drive - can only be run on web page stored on a web server
open
security restrictions
JSON (Javascript Object Notation)
onreadystatechange
14. 403 status message
Ajax.Request constructor
Forbidden
XMLHttpRequest object
getResponseHeader ("headername")
15. Ajax helps make more ________ sites
responsive
Ajax.Request constructor
send (content)
getResponseHeader ("headername")
16. symbol used to return the DOM object representing the element with a given id (replaces document.getElementById)
Prototype
Bad Request
$
Ajax.Request constructor
17. JavaScript library built on top of Prototype that adds visual effects - drag and drop - and others (auto complete - in-place editors)
DOM inspector
DOM (Document Object Model)
Scriptaculous
ajax (Asynchronous Javascript + XML)
18. 200 status message
$
Ajax.Autocompleter
Ok all good
Forbidden
19. 401 status message
responsive
Internal server error
Forbidden
Unauthorized
20. Parameters of Prototype's Ajax.Request: object- URL of request - ________
JSON (Javascript Object Notation)
Bad Request
Forbidden
set of options
21. Script to use _________: <script type="text/javascript" src=" http://ajax.googleapis.com/ajax/libs/prototype/1.6.0.3/prototype.js "></script>
Scriptaculous
set of options
Prototype
XTML HTTP Request (XHR object)
22. new Ajax.Request("file.php" - { method:"get" - parameters: {zip:valueOfZipCode} - onSuccess: displayCityState } );
Ajax.Request constructor
Prototype ajax request
XTML HTTP Request (XHR object)
object document
23. Handler that runs whenever readyState changes
onreadystatechange
query string
$
asynchronous
24. Sends request to server
Internal server error
send (content)
set of options
Bad Request
25. Stores the value returned when send() is finished
XML
ajax.responseText
getResponseHeader ("headername")
asynchronous
26. A lightweight data-interchange format
Internal server error
XML
XMLHttpRequest object
JSON (Javascript Object Notation)
27. Way of encoding parameters into a URL (parameter1=value1¶meter2=value2)(parameters are preceded by a ?)
asynchronous
XMLHttpRequest object
getResponseHeader ("headername")
query string
28. Everything in a document - everything in a browser window is an object. When we talk about these objects the word for that is model. Documents on a webpage = the DOM.
open
Prototype
DOM (Document Object Model)
XTML HTTP Request (XHR object)
29. A group of interrelated web development techniques used on the client-side to create interactive web applications - Loading information using JavaScript from a web server without refreshing the page. Asynchronous requests may be made and responses ar
ajax (Asynchronous Javascript + XML)
send (content)
Ajax.Request constructor
readyState property
30. Makes the necessary arrangements for the server
open
Ok all good
onreadystatechange
Not Found
31. Process to sending ___________: create request object(var ajax= new XMLHTTPRequest())- attach event handler to onreadystatechange(ajax.onreadystatechange = function) - open a connection (ajax.open("get" -url -true); makes arrangements for the server
Not Found
XTML HTTP Request (XHR object)
asynchronous requests
Ok all good
32. 400 status message
set of options
getResponseHeader ("headername")
Bad Request
Ok all good
33. 500 status message
onreadystatechange
Internal server error
inner anonymous function
XMLHttpRequest object
34. A set of useful additional objects - methods - and cross-browser compatibility fixes
open
DOM (Document Object Model)
prototype javascript library
security restrictions
35. Options that can be passed to the ____________: method (get or post) - parameters to pass to the server
Unauthorized
Ajax.Request constructor
asynchronous requests
send (content)
36. User can keep interacting with page while data loads
asynchronous requests
security restrictions
readyState property
asynchronous interaction