DISTANCE EDUCATION
M.C.A. (S)/M.C.A. (Lateral) DEGREE EXAMINATION,
MAY 2017.
Fifth Semester
DISTRIBUTED COMPUTING
(2010 Academic Year Onwards)
Time Three hours Maximum 100 marks
PART A — × 8 40 marks)
Answer any FIVE questions.
1. Write a brief note on the Mobile and Ubiquitous
computing.
2. Explain the different switching schemes used in a
network.
3. Explain the role of XML in interprocess communication.
4. Discuss the design issues for RPC.
5. Explain the file service architecture for distributed
systems.
6. Explain the different names and its attributes used in
distributed file service.
7. Write a brief note on network time protocol.
8. Explain how nested transaction is handled in distributed
system.
Sub. Code
501
DE-697
2
WS 20
PART B — × 15 60 marks)
Answer any FOUR questions.
9. What is Architectural model? Explain in detail the
architectural element and architectural Pattern.
10. Explain the APIs used for interprocess communication.
11. Explain the Request Reply protocol.
12. Outline an implementation for the Election service that
ensures that its records remain consistent when it is
accessed concurrently by multiple clients.
13. Explain the different security techniques and
mechanisms used for securing a distributed system.
14. Explain the use of digital signature in securing a system.
15. What is a deadlock in distributed system? Explain how
deadlocks can be detected and resolved in distributed
systems?