Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 4th Sem (Fourth Semester) Regulation-R15 2019 April-May 824AF Distributed Systems Previous Question Paper
R15
Code No: 824AF
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA IV Semester Examinations, April/May - 2019
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) What are design requirements for distributed architectures?
[5]
b) What is the need for thread synchronization? Discuss briefly.
[5]
c) Explain briefly about Routing overlays.
[5]
d) What are the advantages and drawbacks of multi version timestamp ordering in
comparison with ordinary timestamp ordering?
[5]
e) Give a brief note on the features and advantages of Kerberos.
[5]
PART - B
5 ? 10 Marks = 50
2.
Discuss about system models for distributed systems.
[10]
OR
3.
Explain how communication between distributed objects is achieved by means of RMI?
[10]
4.
Discuss about architecture and principals of monolithic Kernel and micro Kernel
architectures.
[10]
OR
5.
Discuss about X.500 Directory Service.
[10]
6.
Explain Cristian's algorithm and Berkeley algorithm for synchronizing clocks. [10]
OR
7.
Explain the algorithm for mutual exclusion in a distributed system.
[10]
8.
Explain any one optimistic concurrency control algorithm with relevant example. [10]
OR
9.
Explain about Atomic commit protocols.
[10]
10.
Explain in detail about public ? key cryptographic algorithms.
[10]
OR
11.
Discuss about design and implementation issues in DSM.
[10]
---ooOoo---
This post was last modified on 17 March 2023