DISTRIBUTED OPERATING SYSTEMS

2010 Jawaharlal Nehru Technological University, Hyderabad M.C.A JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD MCA-IV Semester Supplementary Examinations July/August 2010 DISTRIBUTED OPERATING SYSTEMS Question paper
Code No: 48
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA-IV Semester Supplementary Examinations July/August 2010
DISTRIBUTED OPERATING SYSTEMS
Time: 3hours Max.Marks:60
Answer any Five questions
All questions carry equal Marks
- - -
1.a) Describe the role and purpose of distributed operating systems in client-server
environment.
b) Describe the design issues to design a distributed system.
2.a) Describe the communication issues in distributed systems.
b) Describe the salient features of ATM Networks.
3.a) Describe the objectives of group communication.
b) What is meant by synchronization? Describe about clock synchronization.
4.a) Describe the electron algorithms.
b) Describe the concept of distributed dead lock detection.
5.a) Describe the concept of mutual exclusion.
b) Describe the concepts of threads in distributed file systems.
6.a) Explain about page based distributed shared memory.
b) Write a brief notes on object based DSM.
7.a) Compare and contrast the differences between page based distributed shared
memory and object based distributed shared memory.
b) Explain the process management features in MACH.
8. Write a brief notes on the following:
a) Directory service in DCE
b) Processor allocation.
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