Amrita Vishwa Vidyapeetham 2007 M.Sc Computer Science Distributed Computing Methods And Techniques - Question Paper

M.Sc. May 2007
Distributed Computing Methods And Techniques
Time : 3 hours Maximum : 100 marks
PART A — (10 ? three = 30 marks)
ans ALL the ques..
1. List any 3 disadvantages of distributed systems.
2. Expand CSCW, SIMD and NUMA.
3. Differentiate Call-by-value and Call-by-reference.
4. Explain the action of stop-and-wait protocol.
5. Explain the 4 essential properties of Transactions.
6. Illustrate the action of two-phase locking.
7. What are the 4 ways of dealing with the shared files in a distributed system?
8. Write down the 3 principal kernel primitives used in the RPC mechanism.
9. Bring down the necessity of a specialized protocol for accessing directory info.
10. List any 3 complicated problems for Query processing in a heterogeneous database.
PART B — (4 ? 10 = 40 marks)
ans any 4 ques..
11. Explain the architectures of bus multiprocessors, switched multiprocessors, bus multicomputers and switched multicomputers.
12. Distinguish ranging from 5 various classes of failures in the RPC systems.
13. Describe the 4 strategies used to handle deadlocks in distributed systems.
14. Compare stateless and state-ful servers in the distributed file implementation.
15. How the memory management is made in MACH? discuss.
16. What are the different kinds of distribution available in distributed database? discuss any two.
PART C — (2 ? 15 = 30 marks)
ans any 2 ques..
17. Discuss briefly about the different layers in the ATM reference model.
18. Explain briefly about the different fault tolerance problems.
19. What are the different implementation problems for RPC systems? discuss any three.

Earning:   Approval pending.