Loyola College B.Sc. Computer Science Nov 2010 Operating System Question Paper PDF Download

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

   B.Sc. DEGREE EXAMINATION – COMPUTER SCIENCE

FIFTH SEMESTER – NOVEMBER 2010

CS 5504 – OPERATING SYSTEM

 

 

 

Date : 29-10-10                     Dept. No.                                                    Max. : 100 Marks

Time : 9:00 – 12:00

 

PART A

Answer ALL the Questions                                                                                       (10 x 2=20 marks)

 

  1. Define Operating System.
  2. What is a System Call?
  3. List down the various process states.
  4. What are the various conditions for Deadlock?
  5. Define Multiprogramming.
  6. Differentiate Virtual Address and Physical Address.
  7. What is Memory Mapped I/O?
  8. Define Buffering.
  9. What is NFS in Linux File System?
  10. Define Caching.

PART B

 

Answer ALL the Questions                                                                                           (5 x 8=40 marks)

 

  1. a) Explain about the Layered Approach of the Operating System Structure.

(OR)

  1. b) Discuss on the System Calls provided for process management.
  2. a) Explain about Semaphores in Inter Process Communication.

(OR)

  1. b) Write about Deadlock Prevention Mechanisms.
  2. a) Discuss on Segmentation.

(OR)

  1. b) Explain about swapping.
  2. a) Explain about Graphical User Interface in Operating Systems.

(OR)

  1. b) Write in detail about I/O Software Layers.
  2. a) Explain about the Windows 2000 File systems.

(OR)

  1. b) Explain the common directory systems in operating system.

PART C

Answer any TWO  Questions                                                                                  (2 x 20 = 40 marks)

 

  1. a) Explain the various tasks carried out by an operating system.
  2. b) Discuss on the various scheduling algorithms for batch systems.

 

  1. a) Explain the following page replacement algorithms with example.
  2. Optimal Page Replacement Algorithm.
  3. Least Recently Used (LRU) Page Replacement Algorithm.
  4. b) Discuss on Virtual Memory Management.

 

  1. a) Explain about Unix File systems.
  2. b) Discuss on UNIX Memory Management.

 

 

 

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