Andhra University 2006-2nd Year M.C.A Elective-1: DISTRIBUTED SYSTEMS/ : Second Semester/ - Question Paper

[52214]
M.C.A. Degree exam
2nd Year: 2nd Semester
Elective-1: DISTRIBUTED SYSTEMS
(Effective from the admitted batch of 2004-2005)

Time: 3hrs. Max. Marks: 100


1st 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.Explain the subsequent in brief:
a)Resource sharing.
b)Caching
c)Remote Procedure Call.
d)Message Brokers
e)Events
f)Name Resolution
g)Logical Clocks.
h)Distributed snapshot.
i)Deadlocks
j)Fault tolerance


2 a)Explain distributed operating System
b)Explain architectural system model.

3. explain Interprocess Communication in UNIX.

4. a)Describe API for the internet protocols.
b)Describe Ethernet.

5 a)Explain the communication ranging from distributed objects.
b)Describe file service architecture


6 a) discuss Lamport time stamps algorithm.
b)Explain distributed debugging.

7. a)Explain bully algorithm.
b)Explain distributed algorithm.

8.Write Short notes on:
a)Optimistic Concurrency Control
b)Time Stamp ordering
c)Transaction recovery
d)Object replication

Earning:   Approval pending.