VTU Computer Science (Semester 8)
Web 2.0 and Rich Internet Applications
May 2016
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1(a) What is ajax? What are the different technologies incorporated in ajax?
7 M
1(b) With code snippet demonstrate sending data to the server using post.
8 M
1(c) Briefly explain the various values of ready state peoperty of the XML Http object. Give example.
5 M

2(a) What are inner functions? What is so special about it?
3 M
2(b) With complete code demomstrate the usage of an array of XMLHttp Request objects.
9 M
2(c) List any 10 Java Script built in properties to work with the nodes in XML document. Explain how we can access XML data directly.
8 M

3(a) Write complete code to demonstrate the positioning of three images and stack those images when a button is clicked.
8 M
3(b) With the code snippets write a note on :
i) Appending elements using DOM
ii) Handling timeouts.
12 M

4(a) What is flex framework? List and explain the contents of flex class library.
12 M
4(b) Explain how flex applications work.
8 M

5(a) List and explain any 5 common UI component properties.
8 M
5(b) Explain common UI component events.
8 M
5(c) Mention the precedence order to apply style to flex UI components if multiple styles are specified.
4 M

6(a) What is action script? What are the four basic options for where to place the code? Give example.
10 M
6(b) Explain error handling in ActionSript.
10 M

7(a) How to define states and adding states in ActionScript? Explain how state events are handled.
10 M
7(b) Explain creation of transitions using :
i) MXML
ii) ActionScript
10 M

8(a) Give the implementation of XML based data modeling using tag.
10 M
8(b) With example explain any five standard framework validators in Flex.
10 M



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