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