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