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