Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 4th Sem (Fourth Semester) Regulation-R15 2018 June-July 824AF Distributed Systems Previous Question Paper
R15
Code No: 824AF
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA IV Semester Examinations, June/July - 2018
DISTRIBUTED SYSTEMS
Time: 3hrs
Max.Marks:75
Note: This question paper contains two parts A and B.
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B
consists of 5 Units. Answer any one full question from each unit. Each question carries
10 marks and may have a, b, c as sub questions.
PART - A
5 ? 5 Marks = 25
1.a)
Describe the limitations of distributed systems.
[5]
b)
Explain RMI.
[5]
c)
Define cast communication.
[5]
d)
Mention the locking rules for nested transaction.
[5]
e)
With an example discuss about digital signature.
[5]
PART - B
5 ? 10 Marks = 50
2.a)
Discuss design issues of Distributed Systems.
b)
Discuss Network Technologies and Protocols in Distributed Systems.
[5+5]
OR
3.
Explain Interprocess communication in detail.
[10]
4.a)
Distinguish between processes and Threads.
b)
Explain various distributed file system components in detail.
[5+5]
OR
5.a)
Discuss about X.500 Directory structure.
b)
Explain the concept of Process creation and communication.
[5+5]
6.
Explain following Synchronizing physical clocks.
a) Cristian's method for synchronizing clocks.
b) The Berkeley algorithm.
[5+5]
OR
7.a)
Explain Atomic commit protocol.
b)
Explain Network Time Protocol.
[5+5]
8.a)
Explain distributed deadlocks.
b)
Explain Hierarchical and group masking of faults.
[5+5]
OR
9.a)
Distinguish cache consistency from replica consistency.
b)
Characterize a distributed system. Explain the term ? Transparency.
[5+5]
10.a) Discuss digital signatures with public keys and with secret keys.
b) Write about key distribution.
[5+5]
OR
11.
Explain the following
a) Nested transactions
b) Release consistency and Munin.
[5+5]
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This post was last modified on 17 March 2023