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