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