MU Information Technology (Semester 6)
Distributed System
December 2014
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) Discuss various Models of Distributed System?
10 M
1 (b) Differentiate between NOS and DOS giving examples of each?
10 M

2 (a) What is the different between Statefull and Stateless server implementation models? Give example of distributed applications using each of the implementation model.
10 M
2 (b) What do you understand by clock synchronization in distributed system? Explain one technique of logical clock synchronization.
10 M

3 (a) Explain Code Migration and the role of Mobile Agents?
10 M
3 (b) List down the issues in designing Distributed Load balancing technique. Explain any two in detail.
10 M

4 (a) Explain the issues to be handled while designing DSM.
10 M
4 (b) Explain RPC Call semantics.
10 M

5 (a) What are the various Group Communication protocols. Explain any one.
10 M
5 (b) How Deadlock Detection is different for a distributed system. Explain any one algorithm of Distributed Deadlock Detection.
10 M

6 (a) Explain Distributed algorithm for Mutual Exclusion. What are the advantages and the disadvantages of it over Centralized algorithm.
10 M
6 (b) Explain Process Migration in Heterogeneous environment.
10 M

Answer any two:-
7 (a) Light-weight RPC
10 M
7 (b) Name Resolution in DNS.
10 M
7 (c) Data Centric and Client Centric Consistency Models.
10 M



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