Kerala University 2007 M.C.A FOURTH SEMESTER , / 2003 PRINCIPLES OF OPERATING SYSTEMS - Question Paper

FOURTH SEMESTER M.C.A. DEGREE EXAMINATION, NOV/DEC 2003
PRINCIPLES OF OPERATING SYSTEMS
Time: 3 Hours Maximum: 75 Marks
Part A
ans all ques..
1. define the features of a simple batch system.
2. elaborate system components?
3. elaborate the typical operating system services?
4. elaborate the criteria for scheduling?
5. What is the need for synchronization?
6. What is logical address space?
7. What is the need for virtual memory?
8. define the concept of replacement.
9. discuss demand segmentation.
10. define briefly any 1 method of deadlock prevention.
Part B
ans 2 full ques. from every module
every module carries 15 marks.
MODULE I
11.
a) elaborate the 3 levels of scheduling? elaborate the objectives?
b) Distinguish ranging from pre-emptive and non-pre-emptive scheduling.
12.
a) elaborate the possible operations on processes?
b) elaborate distributed systems and parallel systems?

13.
a) elaborate (i) system programs and; (ii) system structures?
b) elaborate threads?
MODULE II
14.
a) State and discuss the scheduling criteria.
b) discuss synchronisation in Polaris.
15.
a) define a system model for deadlock.
b) discuss the combined approach to deadlock handling.
16.
a) What is meant by contiguous allocation? discuss.
b) discuss swapping.
MODULE III
17.
a) elaborate the reasons for the popularity of demand paging?
b) discuss space-time product under demand paging.
18.
a) define a classical issue of synchronization.
b) How are frames allocated?
19.
a) discuss anticipatory paging?
b) discuss internal fragmentation in a paged system.

Earning:   Approval pending.