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