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