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