Download JNTUH MCA 4th Sem R15 2021 July-August 824AF Distributed Systems Question Paper

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Code No: 824AF

R15

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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA IV Semester Examinations, July/August - 2021

DISTRIBUTED SYSTEMS

Time: 3 Hours Max.Marks:75

Answer any five questions

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All questions carry equal marks

1. Discuss about Java RMI with relevant example and diagram. [15]

2. a) What are the advantages and disadvantages of distributed systems over centralized systems? [7+8]

   b) Write short notes on the design issues of DS.

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3. Explain about name services domain name systems in distributed systems. [15]

4. a) Explain in detail about distributed file systems. [7+8]

   b) What are the requirements of the distributed file system?

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5. a) Write short notes on distributed mutual exclusion. [7+8]

   b) Discuss about peer to peer systems.

6. Explain about working of pastry and tapestry overlays in distributed systems.

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7. Explain about optimistic concurrency control mechanism in distributed system.

8. a) Explain in detail about Kerberos. [7+8]

   b) Write a note on digital signatures.

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