Madurai Kamraj University (MKU) 2006 B.C.A Computer Application -4 OPERATING SYSTEM - Question Paper

Time: 3 hours Maximum: 100 marks
PART A ans any 6 ques.. (6 x five =30 marks)

1. Is there any difference ranging from multiprogramming and multitasking? If so discuss.

2. define any 4 main purposes of an operating system.

3. What is the difference ranging from logical address and physical addresses?

4. Consider a swapping system in which memory consists of the subsequent hole sizes in
memory order: 10 kB, four kB, 20 kB, 18 kB, seven kB, nine kB, 12 kB and15 kB. Which hole is
taken for successive segment requests of (a) 12kB (b) 10kB (c) 9kB for 1st fit?
Now repeat the ques. for best fit and worst fit.

5. elaborate the criterias to be considered in CPU scheduling?

6. What is deadlock? How can you avoid it?

7. What is file? elaborate the operations of a file?

8. explain about disk initialization.

9. Briefly define the main features of DOS.

10. Classify the Kernel objects of Windows NT and discuss.


PART B ans any 4 ques.. (4 x 10 = 40 marks)

11. define the evolution of operating system.

12. define the steps to create a process. When the process terminated?

13. Consider the subsequent set of processes that arrive at time 0, the length of the CPU
burst time provided in milliseconds.

Process Burst Time

PI 5

P2 24

P3 16

P4 10

P5 3


14. discuss the single partition allocation scheme. Also write the advantages and
disadvantages of single partition scheme.

15. define any 3 disk scheduling.

16. How the file system is maintained in UNIX? discuss.

PART C ans any 2 ques.. (2X15=30marks)

17. discuss the segmentation scheme in detail.

18. define the 4 necessary conditions for deadlock. Also explain about deadlock
prevention.

19. define the most common schemes for designing the logical structure of a directory

Earning:   Approval pending.