54218-mt----system Modelling & Simulation

NR

Code No: 54218/MT

M.Tech. – II Semester Regular Examinations, September, 2008 SYSTEM MODELLING & SIMULATION (Common to Digital Systems & Computer Electronics/ VLSI System Design) Time: 3hours

Max. Marks:60 Answer any FIVE questions All questions carry equal marks ---

1.a) b)

What is meant by simulation modeling? Discuss about discrete event simulation. Write brief notes on simulation of inventory system.

2.a) b)

Discuss the desirable features of a simulation software. Discuss briefly about application oriented simulation packages.

3.

What are the techniques for increasing model validity and credibility? Discuss them indetail.

4.a) b)

Discuss the basic system nomenclature. Explain with an example, modeling of single stage distributed delay and multi-stage delay.

5.a)

What is meant by a state machine? Discuss about synchronous finite state machine. What is meant by petri net? Discuss the standard petri net nomenclature.

b) 6.a) b)

Discuss about random walks, and draw the state diagram for a four-node random walk with reflecting borders. Consider a single server queuing system that allows a single customer to wait (if needed). Events occur according to a poisson process at the average rate of 1 customer each 3 minutes and are served with an exponential service time of mean 15 seconds. Analyze the steady-state character of the system.

7.a) b)

Discuss about M/M/1 queues. What is meant by system multidimentional optimization.

8.

Write short notes on the following: a) Multiple servers b) System integration c) Alpha/Beta Trackers. $$$

optimization?

Discuss

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