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