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