Download JNTUA MCA 2019 May Reg-Supply 4th Sem 9F00405a Distributed Systems Question Paper

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Code: 9F00405a

MCA IV Semester Supplementary Examinations May 2019

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DISTRIBUTED SYSTEMS

(For 2009, 2010, 2011, 2012 (LC), 2013, 2014, 2015 & 2016 admitted batches only)

Time: 3 hours Max. Marks: 60

Answer any FIVE questions

All questions carry equal marks

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1. Discuss the challenges of distributed systems.
2. Describe the main features of the TCP/IP suite of protocols.
3. What are the three alternative approaches to external data representation & marshalling?
4. Discuss the concept of request/reply message handling using HTTP protocol and its limitation & advantages.
5. Explain the design issues of RMI.

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6. Briefly explain the events and notifications mechanism in a distributed system.
7. With neat sketch, explain the operating system layer and core OS functionality.
8. Compare thread versus multiple processes.
9. Explain sun network file system.
10. With neat diagram, explain the file service architecture.

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11. Explain name space and name resolution.
12. Write an algorithm for mutual exclusion.
13. List out use of locks in strict two phase locking.
14. Describe two phase commit protocol and its operations.
15. Illustrate digital signatures with public keys.

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16. Discuss system model-for page-based distribute shared memory.
17. Explain release consistency.

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