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