Jawaharlal Nehru Technological University Hyderabad 2007 M.C.A Computer Aplications DISTRIBUTED OPERATING SYSTEMS - Question Paper

1.a) explain about switched Multiprocessors.
b) discuss about Multiprocessor time sharing systems.
2.a) What is meant by an open system? Why are a few systems not
open?
b) discuss the basic RPC operation.
3.a) What is meant by clock synchronization? explain any 1 of clock
synchronization algorithms.
b) What is meant by mutual exclusion? discuss a centralized
algorithm.
4.a) discuss the Bully Algorithm.
b) explain about Implementing a threads package.
5.a) What is real-time scheduling? Compare dynamic and static
scheduling.
b) With a neat diagram discuss the NFS layer structure.
6.a) What is meant by Replication? discuss the explicit file replication
and lazy file replication.
b) discuss the Ring-based Multiprocessors.
7.a) explain about sequential consistency.
b) define the Kernel structure of Chorus.
8. Write short notes on any 3 of the following:
(a) actual distributed systems
(b) dynamic binding
(c) Thread usage
(d) Goals of Chorus

Earning:   Approval pending.