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Simulation And Modeling (Bbit 417) 3Rd Trimester 2015 Question Paper

Simulation And Modeling (Bbit 417) 3Rd Trimester 2015

Course:Bachelor Of Business Information Technology

Institution: Kenya Methodist University question papers

Exam Year:2014

SIMULATION AND MODELING (BBIT 417) 3rd trimester 2015
KENYA METHODIST UNIVERSITY

END OF 3'RD 'TRIMESTER 2015 (PT) EXAMINATION

FACULTY : COMPUTING & INFORMATICS
DEPARTMENT : COMPUTER SCIENCE
UNIT CODE : BBIT 417
UNIT TITLE : SIMULATION AND MODELING
TIME : 2 HOURS

INSTRUCTIONS

Answer question one and any other two questions
Question One

Explain the term simulation
(2 Marks)
With examples differentiate between the following basic systems terminologies.
(12 Marks)
Endogenous and exogenous event
Discrete and continuous system
Validation and verification process
The simulation model or simulation cycle can be broken down into four phases. Explain briefly the main tasks of each of the phases.
(8 marks)
Explain what is meant by the ’system state’ in simulation. What can change the system state in a single server queuing system.
(3 Marks)
Explain why simulation is important in performing modeling.
(3 Marks)
Describe any two types of queuing systems.
(2 Marks)
Question Two

Describe the differences between a steady state and transient state system.
(4 marks)
List the four desired properties of a random number generation.
(4 Marks)
The ABC transport company has one reservation clerk on duty at a time. He handles information of bus schedules and makes reservations. Customers arrive at a rate of 6 per hour and the clerk can service 10 customers on the average per hour.
What is the average number of customers waiting for the service of the clerk?
(3 Marks)
What is the average time a customer has to wait before getting a service?
(3 Marks)
What is the average waiting time of a customer in the system?
(3 Marks)
Explain any three instances when not to use simulation.
(3 Marks)
Question Three

State any four advantages of simulation approach.
(4 Marks)
Enumerate and discuss the steps in simulation study.
(5 Marks)
I) Describe the Poisson process in simulation.
(5 Marks)
II) Suppose that arrivals occur at a processor at the average rate of 6 per second. What is the probability that

No arrivals occur in next second.
(2 Marks)
One arrival occur in next second
(2 Marks)
Three arrivals will occur in the next second.
(2 Marks)
Question four

Explain the Kendall classification of queuing system.
(5 marks)
Explain the following arrival and service patterns
M/D/n
(2 Marks)
M/G/3/20
(3 Marks)
D/M/1/LIFO/10/58
(3 Marks)
A telephone attendant receives 110 calls during the busy hour. Each call takes an average 30 seconds to process
What percentage of the attendant’s time is devoted to answering calls?
(3 Marks)
How long must people wait, on average before their call is processed?
(2 Marks)
How many people are in the queue on average?
(2 Marks)
Categories: SIMULATION AND MODELING | (BBIT 417) | 3rd trimester 2015
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Simulation And Modeling (Bbit 417) 3Rd Trimester 2015 Question Paper

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