Loyola College B.Sc. Computer Science April 2009 Operating System Question Paper PDF Download

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – COMPUTER SCIENCE

SH 12

FIFTH SEMESTER – April 2009

CS 5501 – OPERATING SYSTEM

 

 

 

Date & Time: 16/04/2009 / 9:00 – 12:00       Dept. No.                                                       Max. : 100 Marks

 

 

PART – A

Answer ALL questions:                                                                                  (10 x 2 = 20)  

 

  1. Define: Operating System.
  2. What is Multiprogramming?
  3. Mention any two major activities of an operating system with regard to memory management.
  4. When overlays are used?
  5. When do we say that a system is in safe state?
  6. Write a note on scheduling algorithm.
  7. Write any two advantages of Direct access storage devices.
  8. What do you mean by spooling?
  9. What are the objectives of file Management function?
  10. List out the advantages of UNIX.

PART – B

Answer any FIVE questions:                                                                         (5 x 8 = 40)

 

  1. a) Explain the common operating system services which help the user.

(OR)

  1. b) Explain the various operations on process.

 

  1. a) What do you mean by compaction? Explain.

(OR)

  1. b) Write a note on Segmentation

 

  1. a)Explain on how the Banker’s algorithm used for Deadlock avoidance

(OR)

  1. b) Write a short note on Inter process communication

 

  1. a) Explain about disk scheduling with an example.

(OR)

  1. b) Explain the need for device management

 

  1. a) Explain the two level directory structure

(OR)

  1. b) Write a note on WINDOWS operating system

PART – C

Answer any TWO questions:                                                                          (2 x 20 = 40)

 

  1. a) Explain the various types of system calls normally provided by an operating

system in detail.

  1. b) Explain in detail about Buffering.

 

  1. a) Explain the Segmentation memory management scheme in detail.
  2. b) Discuss in detail about Swapping.

 

  1. a) List out file protection methods and explain any three of them.
  2. b) Explain in detail on Disk scheduling.

 

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