Madurai Kamraj University (MKU) 2006-2nd Year M.C.A Computer Aplications All subject s - Question Paper

PART A ans ALL ques.. (8 x five = 40 marks)

1. (a) Write short note on early operating system. List the differences ranging from
Multiprogramming and Time-sharing systems. Or
(b) discuss the architecture of an operating system.

2. (a) List out the different process states and briefly discuss with a state diagram. Or
(b) What do you mean by processor scheduling? discuss the different levels of scheduling.

3. (a) discuss the methods of dead lock prevention and avoidance. Or
(b) Write briefly on fragmentation and swapping.

4. (a) Why disk scheduling is necessary? discuss the various seek optimization techniques.
Or
(b) define the various mechanisms used to protect a file.

5. (a) discuss the design principles of Unix
(b) Write a short note on Unix file system

6. (a) Write short notes on Demand Page Memory management. Or
(b) What is segmentation? State it usages.


7. (a) discuss the concepts involved in maintaining the file system security. Or
(b) Write short notes on double - buffering.


8. (a) List the different merits of treating directories and devices as file in Unix. Or
(b) Write short notes on I/O systems on Unix.

PART B ans ALL ques.. (5 x 12 = 60 marks)

9. (a) discuss the different functions of an operating system from a system programmer's
view.
Or
(b) What is s'emaphore? discuss the application of semaphore.

10. (a) Compare preemptive and non-preemptive algorithm. Or
(b) discuss the Banker's algorithm for dead -lock avoidance.

11. (a) discuss any 4 page replacement algorithms. Or
(b) State about virtual memory concept.

12. (a) define the different disk scheduling algorithms. Or
(b) provide an overview of the different protection and access control mechanisms
implemented in a
file system.

13. (a) explain the file protection mechanisms incorporated in a Unix file system. Or
(b) List the calls in Unix for process management and write the function of every.


MCA 2nd Year MAY 2006

PAPER IX Elective - ARTIFICIAL INTELLIGENCE

Time: 3 hours Maximum: 100 marks

PART A ans ALL ques.. (8 x five = 40 marks)

1. (a) describe artificial intelligence. discuss how do AI issues differ from normal issues.
Or
(b) What is an AI technique? explain.

2. (a) describe a issue. discuss the state space representation method of a issue with an
example. Or
(b) explain A * algorithm.

3. (a) explain mini-max search procedure with examples. Or
(b) discuss the following: (i) Futility cut off (ii) Horizon effect.

4. (a) define the steps involved in translating a wff to clause form. Or
(b) Write short notes on Non-monotonic Reasoning.

5. (a) provide a brief discussion on frames. Or
(b) define the components of an Expert system.

6. (a) discuss case grammars Or
(b) provide a brief note on understanding

7. (a) Write a note on procedural representation Or
(b) define concept learning.

8. (a) discuss discovery as learning. Or
(b) explain learning by analogy.

PART B (5 x 12 = 60 marks)

9. (a) explain in detail the areas of AI. Or
(b) discuss the organization of AI systems.

10. (a) what are the characteristics of a issue. Or
(b) explain the following:
(i) Production systems
(ii) Means ends analysis.

11. (a) Briefly explain the alpha beta algorithm with suitable examples illustrating the cutoffs
clearly.
Or
(b) provide a detailed account on scripts.

12. (a) Write a note on natural understanding language in general. Or
(b) discuss the use of frames and scripts in understanding.

13. (a) define Rote learning. Or
(b) discuss learning in GPS.

MCA 2nd Year MAY 2006

PAPER X Elective - MODERN COMMUNICATION

Time: 3 hours Maximum: 100 marks

PART A ans ALL ques.. (8 x five = 40 marks)

1. (a) Why we need for modulation? discuss AM. Or
(b) Briefly discuss the single - sideband modulation and demodulation.

2. (a) Compare AM with FM. Or
(b) discuss directly modulated FM transmitters. discuss AGC and AFC

3. (a) discuss AGC and AFC Or
(b) discuss single tone and multi tone FM

4. (a) discuss in detail about PCM. Or
(b) discuss in detail about PAM sampling.

5. (a) discuss in detail Flat-topped PAM sampling. Or
(b) Compare the FSK with ASK.

6. (a) discuss in detail about microwave communication. Or
(b) define in detail about mobile dispatch system.

7. (a) explain about the Losses in Fibers Or
(b) discuss the p-n photo diode detectors

8. (a) discuss the basic principles of television Or
(b) explain about the generation of composite receivers.

PART B ans ALL ques.. (5 x 12 = 60 marks)

9. (a) Briefly discuss the balanced modulator circuit. Or
(b) Draw and discuss the block diagram of AM transmitters.

10. (a) Sketch the graphs and discuss equivalent frequency deviation and avg. noise power
output for noise in FM receiver. Or
(b) explain about the narrow band FM and wide band FM.

11. (a) discuss the pulse transmission system and encoding system. Or
(b) Briefly discuss the digital modulation techniques

12. (a) discuss in detail about Satellite Communication system Or
(b) describe orbit and Station keeping. discuss the detail about transmission path in Satellite
system.

13. (a) What is the advantage of using a graded index core in a fiber? discuss how energy is
lost from fiber at a sharp bend. Or
(b) Briefly discuss the block diagram of black and white television receiver.

Earning:   Approval pending.