GTU Computer Engineering (Semester 7)
Web Data Management
December 2015
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) Explain XML Data Model with example.
7 M
1(b) Discuss: XML fulfill requirements for semi-structured data model.
7 M

2(a) Explain in Detail Web Data Management with XML.
7 M
Solve any one question from Q.2(b) & Q.2(c)
2(b) Explain Advanced features of XQuery with example.
7 M
2(c) Differentiate between XPath and XQuery With examples.
7 M

Solve any one question from Q.3 & Q.4
3(a) How to Evaluate Bottom-Up and Top-Down Tree Automata with example.
7 M
3(b) Explain XML evaluation techniques.
7 M

4(a) What is graph bisimulation? Explain in Details.
7 M
4(b) How data can be exchanged between applications using XML.
7 M

Solve any one question from Q.5 & Q.6
5(a) Explain DL-LITE Ontologies in details.
7 M
5(b) Explain Ontologies with example.
7 M

6(a) Explain Global-as-view (GAV) and Local-as-view (LAV) mediation with example.
7 M
6(b) How to use Peer-to-peer data management systems in WDM.
7 M

Solve any one question from Q.7 & Q.8
7(a) How to evaluate index a collection of text documents in a suitable way to efficiently answer keyword queries?
7 M
7(b) Explain Recovery techniques of a Distributed system.
7 M

8(a) Explain following terms with example in Distributed system.
1) Reliability 2) Scalability 3) Availability 4) Efficiency
7 M
8(b) Explain Web graph mining and hot topics in web search.
7 M



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