Total No. of Questions 18] [Total No. of Pages 02
M.Sc. DEGREE EXAMINATION, MAY 2018
(First Year)
COMPUTER SCIENCE
Distributed Operating Systems
Time 3 Hours Maximum Marks 70
SECTION A × 15 45)
Answer any three questions from the following
Q1) Discuss advantages of distributed systems over centralized and independent PC's and
also give the disadvantages of distributed systems.
Q2) Explain about distributed deadlock detection and prevention.
Q3) Discuss about design issues for thread packages.
Q4) Explain about process allocation models and process allocation algorithm.
Q5) Discuss about page based distributed shared memory and object based distributed
shared memory.
SECTION B × 4 20)
Answer any five questions from the following
Q6) Write about the features of client server model.
Q7) Write about ATM physical layer and adaption layer.
Q8) Describe transaction model in distributed system.
Q9) Briefly explain about clock synchronization algorithm.
Q10) Explain about fault tolerance using active replication.
Q11) Write about scheduling in distributed systems.
Q12) Briefly explain about directory server interface.
Q13) Write short notes on NUMA multiprocessors.
SECTION C × 1
Answer all questions
Q14) Define fault tolerance in distributed operating systems.
Q15) What is mutual exclusion?
Q16) Define shared memory.
Q17) What is logical clock?
Q18) What is ATM switching?