Computer Simulation & Modelling - May 2012

Information Technology (Semester 8)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1(a) State when simulation is appropriate(5 marks) 1(b) Define : System and Model.(5 marks) 1(c ) Explain the properties of Poisson process.(5 marks) 1(d) Distinguish between
(i)Activity and Delay
(ii)Random Numbers and Random Variant (5 marks) 2(a) Explain steps in simulation study along with the flowchart.(10 marks) 2(b) Explain Naylor and Finger validation approach. (10 marks) 3(a) Explain different types of simulation with respect to output analysis. (10 marks) 3(b) Explain in detail an evaluation and selection technique for simulation software.(10 marks) 4(a) Records pertaining to monthly number of jobs related injuries at Chemical plant were being studied by an NGO. The value for past 100 months were as follows:

Apply the Chi-square goodness of fit test to these data to test the hypothesis that the underlying distribution is poisson. Use level of significance ?=0.05 (10 marks) 4(b) Explain overall structure of an event scheduling for simulation program with the help of necessary flowchart(10 marks) 5(a) Explain in detail method of batch means of interval estimation in steady state simulation. (10 marks) 5(b) Explain long run measures of Performance of Queuing system.(10 marks) 6(a) Explain multiuser queuing system with suitable example.(10 marks) 6(b) Explain steps involved in development of useful model of input data (10 marks)

Write short notes on any two of the following:-

7(a) Inverse Transform Technique(10 marks) 7(b) Terminating and Non-Terminating Simulation.(10 marks) 7(c) Verification and Validation process.(10 marks) 7(d) Features of GPSS(10 marks)