DISTRIBUTED DATABASES

2010 Jawaharlal Nehru Technological University, Hyderabad JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD M.C.A IV Semester Supplementary Examinations July 2010 DISTRIBUTED DATABASES Question paper
code No: 44
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
M.C.A IV Semester Supplementary Examinations July 2010
DISTRIBUTED DATABASES
Time: 3hours Max.Marks:60
Answer any five questions
All questions carry equal marks
- - -
1. Discuss the features of Distributed Databases and Centralized Databases. Give
suitable examples for each type.
2. Explain the various steps involved in the Design of Distributed Databases.
3. Explain how to transform Global Queries into Fragment Queries with examples.
4. a) What are the various types of Join Queries available in Distributed Databases?
Explain.
b) What are General Queries? Explain.
5. a) What are the features of Concurrency Control mechanism in Centralized
Databases?
b) Differentiate Concurrency in Centralized Database with Distributed Databases.
6. What are the various Locking protocols available in Distributed databases?
Explain with example.
7. a) Explain the role of Check points in Distributed databases.
b) What is meant by Reliability? Explain.
8. Write short notes on
a. Ingress Databases
b. IBM's intersystem communication
c. Multibase
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