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