Andhra University 2005-2nd Year B.Tech Computer Science and Engineering Forth Semester - DISTRIBUTED SYSTEMS - Question Paper

MODEL PAPER

B. Tech (CSE) Degree exam

Forth Year - 2nd Semester

DISTRIBUTED SYSTEMS

Time: three hrs
Max Marks: 70

First ques. is Compulsory

ans any 4 from the remaining ques.

All ques. carry equal marks

ans all parts of any ques. at 1 place

1. Briefly discuss the subsequent (7 x two = 14)
a. Tightly coupled software on loosely coupled hardware.
b. TCP/IP
c. Logical clocks
d. Threads
e. File sharing semantics
f. NFS
g. Location Transparency.

2. explain the characteristics of Network. Distributed and Multiprocessor time sharing operating systems. (14)

3. a. discuss the difference ranging from stateless and state full server (4)
b. explain RPC semantics in the presence of failures. (10)

4. explain implementation aspects of Atomic transaction model. (14)

5. a. Briefly explain group communication problems. (10)
b. discuss how token ring algorithm can be used to implement mutual exclusion. (4)

6. explain the design problems for processor allocation algorithms. (14)

7. explain the design problems for file caching and replication (14)

8. explain the architectural aspects for implementing shared memory (14)

Earning:   Approval pending.