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