JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA V Semester Examinations, October/ November - 2020
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DISTRIBUTED DATABASES
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Time: 2 Hours--- Content provided by FirstRanker.com ---
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Max. Marks: 75
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Answer any five questions
All questions carry equal marks
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----1.a)
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Explain about Reference Architecture for Distributed Databases.
b)
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Write short note on Distribution Transparency.--- Content provided by FirstRanker.com ---
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[7+8]2.a)
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Explain about Parametric Queries in distributed database.b)
Explain about grouping and aggregate function evaluation in distributed database. [7+8]
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3.a)
Explain Timestamp based protocol in distributed databases.
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b)
Explain Optimistic Methods for Distributed Concurrency Control.
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[7+8]
used
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4.a)
Explain about the following in Distributed Data base:
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i) Check points
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ii) Cold Restart.
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b)
Explain bout authorization and protection in distributed database.
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[7+8]
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5.a)Explain about various query processing layers in Distributed Multi-DBMS.
b)
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Explain about Object Management Architecture CORBA.
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[7+8]
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6.a)Define Distributed Data base and explain the various features of distributed database.
b)
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What is meant by data fragmentation? Explain the Vertical Fragmentation with an
example.
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[7+8]
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7.a)List out the different components that are used by query optimizer. Explain.
b)
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Discuss how an optimization graph can be drawn for a given query.
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[7+8]8.a)
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Explain two-phase locking protocol in distributed database.b)
Explain Deadlock prevention in distributed databases.
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[7+8]
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