Parallel & Distributed Systems - May 2015
Computer Engineering (Semester 8)
TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1 (a) Explain Distributed system models with diagram.(10 marks) 1 (b) Explain RPC system model in detail.(10 marks) 2 (a) What are the good features of a Distributed File System? Explain file sharing semantics of it.(10 marks) 2 (b) Explain various forms of message oriented communication with suitable example.(10 marks) 3 (a) Explain Distributed algorithm for mutual exclusion. What are the advantages and disadvantages of it over centralized algorithms.(10 marks) 3 (b) Compare stateful and stateless servers.(10 marks) 4 (a) Explain the distributed algorithms for clock synchronization.(10 marks) 4 (b) What are the common strategies used for handling deadlocks in distributed systems,(10 marks) 5 (a) Define Thrashing. What are the methods used for solvig thrashing problems.(10 marks) 5 (b) Explain the different load estimation policies and process transfer policies used by load balancing algorithms.(10 marks) 6 (a) Write a note on system oriented names and human oriented names.(10 marks) 6 (b) Discuss file caching for distributed system.(10 marks)
Write short note on (any two)
7 (a) Light-weight RPC.(10 marks) 7 (b) Distributed Transaction Management.(10 marks) 7 (c) Distributed computing environment (DCE).(10 marks) 7 (d) Election algorithms(10 marks)