Calicut University B.Tech Computer Science and Engineering Distributed systems Question paper

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SEVENTH SEMESTER B.TECH. (ENGINEERING) DEGREE
EXAMINATION, JUNE 2009
CSIlT 04 703 -DISTRIBUTED SYSTEMS
(2004 Admissions)
Time : Three Hours Maximum : 100 Marks
Answer all questions.
Part A
Each question carries 5 marks.
1. (a) Give the advantages and disadvantages ofdistributed systems.
(b)
What do you mean by access transparency and concurrency transparency?
(c)
Explain clear synchronization.
(d)
Discuss about Threads and Processes.
(e)
Write on the directory services provided by the distributed system.
(f)
ExPlain briefly the-rDetboda·OfIDter P.niC8M' COmm~.(
g)
Briefly explain Dynamic load sharing.
(h)
Explain the concept of shared memory in distributed systems. (8 )( 5 = 40 marks)
PartB
Each question ca"ies 15 marks.
n. (a) Explain the distributed system architecture.
Or
(b)
Explain the design issues in distributed system.
m.
(a) Write in detail about the features ofconcurrent programming languages.
Or
(b)
Discuss the client-server model ofa distributed system and its protocols.
N.
(a) (i) Explain the requestlreply communication model.
(ll) Discuss an algorithm used to achieve mutual exclusion. (7 + 8 = 15 marks)
Or

(b)
Write short notes on:
(i)
Transaction Communication.
(ii)
Message Passing Communication.
(7 + 8 = 15 marks)
V.
(a)
Describe the real time scheduling and its types.
Or
(b)
Explain the distributed file system implementation and its components.
[4 x 15 = 60 marks]