B.Tech. Vth Semester Examination(2008)
Principles of Operating System(CSE)
Paper: CS-5001
Note: Attempt five questions in all, selecting one each from Sections A,B,C and D. Section E is compulsory.
Section-A
1. What are the different types of Operating system?
What are the different characteristics of each of them? [20]
2.What are the major criteria of Scheduling of Process?
How processes are executed in a co-operative mode? [20]
Section-B
3. What is a Deadlock? How is it detected and prevented? [20]
4. What is an Access matrix for protection? How is it
Implemented? [20]
Section-C
5. What is Virtual Memory? Why is it required? How
is it implemented in an operating system? [20]
6. What are different Disk Scheduling algorithm? Discus. [20]
Section-D
7. What is a Process Sync? What are different algorithm for
Process sync? [20]
8. What are different algorithm for space allocation? Discus. [20]
Section-E
9. Write short answers:
(i) What is Internal fragmentation? [2]
(ii) What is Context switching? [2]
(iii) What is Multitasking ? [2]
(iv) What is Thrashing ? [2]
(v) What is Reentrant code? [2]
(vi) What is Swap space ? [2]
(vii) What is Demand paging ? [2]
(vii) How security threat is monitored ? [2]]
(ix) What is Multithread ? [2]
(x) What is Real-time scheduling. [2]
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