Bachelor of Science in Information Technology (BScIT) – Semester 2/Diploma in Information Technology (DIT) – Semester 2

BT0070 – Operating Systems – 4 Credits (Book ID: B0954)Assignment Set – 1 (60 Marks)

Answer all questions 10 x 6 = 60

1. Discuss Time-sharing operating system.

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2. What is PCB? What useful information is available in PCB?

3. What are the drawbacks of Shortest-Job-First scheduling algorithm?

4. Discuss Interprocess Communication.

5. Describe safe, unsafe and deadlock state of a system.

6. What is MMU?

7. Explain Belady’s anomaly with the help of FIFO page replacement algorithm.

8. What is the difference between a File and a Directory?

9. Describe the procedure of performing a remote read in a NOS.

10. Discuss the need for security and protection in computer systems.

Bachelor of Science in Information Technology (BScIT) – Semester 2/Diploma in Information Technology (DIT) – Semester 2

BT0070 – Operating Systems – 4 Credits (Book ID: B0954)Assignment Set – 2 (60 Marks)

Answer all questions 10 x 6 = 60

11. Explain how virtual address is mapped onto physical address.

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12. Explain first-fit, best-fit and worst-fit allocation algorithms with an example.

13. Explain demand paging virtual memory system.

14. Discuss the optimal page replacement algorithm.

15. Explain the concept of File.

16. Explain different operations possible on Files.

17. Explain how applications and data can be distributed.

18. What is the need for migration? Explain the different types of migration.

19. Write a note on computer virus.

20. List the advantages of multiprocessor systems.