Total No. of Questions 10] [Total No. of Pages 02
P.G. DIPLOMA DEGREE EXAMINATION, MAY 2017
INFORMATION TECHNOLOGY
Operating Systems
Time 3 Hours Maximum Marks: 70
Answer any FIVE questions
All questions carry equal marks
Q1) Discuss about evaluation of operating systems.
Q2) Describe the inter process communication in client server systems.
Q3) What is thread? Describe various issues to be considered with multi-threading
programs and also mention various thread models.
Q4) What do you mean by scheduler? State and explain different types of schedulers.
Q5) Discuss the critical section problem. State the basic requirements of critical
section problem solution.
Q6) State clearly four necessary conditions for deadlocks to occur. Explain Banker's
algorithm for deadlock avoidance.
Q7) What is meant by paging? Write about the techniques for structuring the page
table.
Q8) Explain the indexed and linked file allocation methods. Discuss the advantages
and Disadvantages in those methods.
Q9) Explain the RAID levels and problems associated with RAID.
Q10) What is virus and worm? How to handle worms and virus by operating systems.