M.C.A. DEGREE EXAMINATION, MAY 2017
Second Year
DISTRIBUTED OPERATING SYSTEMS
Time 3 Hours Maximum Marks 70
Section A x 15 45)
Answer any three Questions
Q1) Discuss various hardware and software concepts in distributed OS.
Q2) Explain ATM networks in detail.
Q3) Discuss the issues that have to be considered while allocating processes to processors
in distributed systems.
Q4) Explain distributed algorithm for Deadlock detection and prevention.
Q5) Discuss different approaches to solve multi copy update problem, for file replication in
the distributed file systems.
Section B x 4 20)
Answer any five questions from the following
Q6) Explain Light weight RPC? Is it possible to implement light weight RPC in railway
reservation system?
Q7) Write short notes on atomic transactions.
Q8) What is thread? Describe different types of threads.
Q9) Explain Distributed clock synchronization algorithm.
Q10) Explain desirable features of Process migration in Distributed Operating system.
Q11) Discuss the relative advantages and disadvantages of using full-file caching and block
caching mechanism of a distributed file systems.
Q12) Write short notes fault tolerance.
Q13) Write about inter-process communication and co-ordination mechanisms.
Section C x 1
Answer all questions
Q14) Give any two goals of DOS.
Q15) What is scheduling?
Q16) What is thrashing?
Q17) What is stateless file server?
Q18) Define mutual exclusion.