Download AKTU B-Tech 8th Sem 2015-16 ECS 701 Distributed System Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 8th Semester (Eight Semester) 2015-16 ECS 701 Distributed System Question Paper

Printed Pages: 4 ECS-701
(Following Paper ID and Roll No. to be ?lled in your
Answer Books)
RollNof llllllll
BEECH.
Theory Examination (Semester-VIII) 2015-16
DISTRIBUTED SYSTEM
Hme : 3 Hours Max. Marks : 100
Section-A
1. Attempt all parts. All parts carry equal marks. Write
answer of each part in short. (2X10 = 20)
(3) De?ne distributed systems with its examples.
(b) What is meant by distributed ?le system?
(c) Discuss heterogeneity and its characteristics.
(d) Which type of network can be used by distributed
system?
(1) P.T.O.
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(e)
(f)
(g)
(h)
(i)
0)
Explain global states and distributed debugging.
What is meant by distributed garbage collection?
Why are distributed computing systems gaining popu-
larity?
What are the different types of distributed ?le system
available?
Write thedifficulties occur to make distributed
system.
Differentiate between marshalling and un-marshalling.
Section-B
Attempt any ?ve questions from this section.
(a)
(b)
(10x5 = 50)
Write in detail about the characteristics of inter
process communication.
Explain how mutual exclusion is implemented in
distributed systems.
(2)
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(C)
(d)
(e)
(f)
(1!)
Explain the two phases in the two-phase commit
protocol with the help of a diagram.
Can a server invoked by light weight procedure calls
control the degree of concurrency within it? Explain.
G) What are the election algorithms? Explain about
Bully algod?nn.
(n) Explain about distributed debugging.
What are the key design issues of remote procedure call
system?
Explain asynchronous replication for updating
distributed data.
Write short notes on:
(i) Design and implementation issues of distributed
shared memory.
(:1) Distributed deadlocks.
(3) P.T.O.
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Section-C
Attempt any two questions out of the following :
(1 5 X2 = 30)
3. Discuss how the ef?ciency of distribmed shared memory sys-
tem depends on the size of granularity and protocol used for
page replacement.
4. How check pointing is used in fault tolerance in
Distributed Systems? Explain independent check pointing and
coordinated check pointing.
5. Explain following points related to recovery for
providing fault tolerance capacitiw:
(i) Backward recovery
(i1) Forward recovery
(iii) Sender based legging
(iv) Receive based logging.
(4)
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