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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. symbol used to return the DOM object representing the element with a given id (replaces document.getElementById)
onreadystatechange
JSON (Javascript Object Notation)
XML
$
2. XML Allows you to use __________ as well because XML is a document.
DOM inspector
XTML HTTP Request (XHR object)
asynchronous
ajax.responseText
3. Objects have properties such as the title tag on a page is a property of _________. Properties themselves are objects.
Internal server error
object document
onreadystatechange
readyState property
4. Parameters of Prototype's Ajax.Request: object- URL of request - ________
$
DOM inspector
set of options
Internal server error
5. 400 status message
security restrictions
responsive
Bad Request
Unauthorized
6. The real value of XML HTTP request is in the way it is ________.
Ok all good
set of options
XML
asynchronous
7. Fetches and displays list of choices using Ajax
Ajax.Autocompleter
Unauthorized
prototype javascript library
readyState property
8. 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.
Unauthorized
DOM (Document Object Model)
Ajax.Request constructor
Prototype
9. Ajax helps make more ________ sites
responsive
JSON (Javascript Object Notation)
getResponseHeader ("headername")
Internal server error
10. Sends request to server
send (content)
Scriptaculous
open
Bad Request
11. Handler that runs whenever readyState changes
object document
asynchronous
onreadystatechange
ajax.responseText
12. 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
object document
set of options
asynchronous requests
asynchronous interaction
13. 200 status message
XMLHttpRequest object
onreadystatechange
Ok all good
Ajax.Autocompleter
14. Stores the value returned when send() is finished
ajax.responseText
prototype javascript library
responsive
Autocompleter.Local
15. JavaScript library built on top of Prototype that adds visual effects - drag and drop - and others (auto complete - in-place editors)
Ajax.Autocompleter
getResponseHeader ("headername")
Unauthorized
Scriptaculous
16. Options that can be passed to the ____________: method (get or post) - parameters to pass to the server
Ajax.Request constructor
Autocompleter.Local
XML
onreadystatechange
17. 403 status message
Ajax.Request constructor
Forbidden
Internal server error
asynchronous requests
18. Auto-completes from an array of choices
Ajax.Autocompleter
DOM inspector
asynchronous interaction
Autocompleter.Local
19. At its core ________ is a way of showing data in a text format that is parsable. Without an associated style file.
Ajax.Autocompleter
asynchronous requests
ajax (Asynchronous Javascript + XML)
XML
20. AJAX files ______________: Cannot be run from web page stored on hard drive - can only be run on web page stored on a web server
ajax (Asynchronous Javascript + XML)
Scriptaculous
security restrictions
asynchronous requests
21. A set of useful additional objects - methods - and cross-browser compatibility fixes
prototype javascript library
query string
XTML HTTP Request (XHR object)
Internal server error
22. User can keep interacting with page while data loads
set of options
asynchronous requests
query string
asynchronous interaction
23. 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)
readyState property
object document
Scriptaculous
inner anonymous function
24. 401 status message
open
getResponseHeader ("headername")
Unauthorized
Ok all good
25. 404 status message
Not Found
Bad Request
Unauthorized
Forbidden
26. It can access surrounding local variables
Ok all good
XML
ajax.responseText
inner anonymous function
27. Script to use _________: <script type="text/javascript" src=" http://ajax.googleapis.com/ajax/libs/prototype/1.6.0.3/prototype.js "></script>
Autocompleter.Local
asynchronous requests
Prototype
responsive
28. Way of encoding parameters into a URL (parameter1=value1¶meter2=value2)(parameters are preceded by a ?)
query string
onreadystatechange
Prototype
DOM inspector
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.responseText
ajax (Asynchronous Javascript + XML)
DOM inspector
Ajax.Autocompleter
30. A lightweight data-interchange format
$
JSON (Javascript Object Notation)
security restrictions
Prototype ajax request
31. 500 status message
XTML HTTP Request (XHR object)
inner anonymous function
Prototype
Internal server error
32. Makes the necessary arrangements for the server
readyState property
prototype javascript library
asynchronous requests
open
33. new Ajax.Request("file.php" - { method:"get" - parameters: {zip:valueOfZipCode} - onSuccess: displayCityState } );
ajax.responseText
Prototype ajax request
readyState property
asynchronous requests
34. 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
query string
XML
XTML HTTP Request (XHR object)
getResponseHeader ("headername")
35. The core Javascript object that makes Ajax possible. Can fetch files from a web server
asynchronous
getResponseHeader ("headername")
XMLHttpRequest object
asynchronous interaction
36. XMLHttpRequest to pass header name and get response.
getResponseHeader ("headername")
asynchronous
Bad Request
Autocompleter.Local