ISYE6644 (Simulation) Midterm 1 exam with correct answers

ISYE6644 (Simulation) Midterm 1 exam ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\




with correct answers ||\\||\\ ||\\||\\




What are some characteristics of simulation models? - correct
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answer✔✔1. Discrete (vs. continuous) ||\\||\\ ||\\||\\ ||\\||\\




2. Stochastic (vs. deterministic)
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3. Dynamic (vs. static)
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What is simulation? - correct answer✔✔Simulation is the
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imitation of a real-world process of system over time. ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\




Simulation involves the generation of an artificial history to ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\




draw inferences concerning the operating characteristics of the
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real system that is represented.
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What is simulation good for? - correct answer✔✔1. Describe /
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analyze real or conceptual system behavior. ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\




2. Ask "what if" questions.
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3. Aid in system design and optimization
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4. Can simulate almost anything
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,What are the reasons to simulate? - correct answer✔✔1. Will
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the system accomplish its goals?
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2. Current system won't accomplish its goals, now what?
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3. Need incremental improvement.
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4. Create a specification or action plan
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5. Solve a problem, like a bottleneck.
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6. Resolve disputes
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7. Sell an idea
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What are the advantages of simulation? - correct answer✔✔1.
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Can study models too complicated for analytical / numerical
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treatment
2. Study detailed relations that might be lost in the analytical or
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numerical treatment ||\\||\\




3. Use as a basis for experimental studies of systems
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4. Use to check results and give credibility to conclusions
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obtained by other methods. ||\\||\\ ||\\||\\ ||\\||\\




5. Reduce design blunders
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6. Really nice demo method
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7. (sometimes) very easy
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, What are the disadvantages of simulation? - correct||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\




answer✔✔1. Sometimes not so easy ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\




2. Sometimes very time consuming / costly
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3. Simulations give "random" output (and lots of
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misinterpretation of results is possible) ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\




4. To do a certain problem, better methods than simulation may
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exist


We are interested in modeling the arrival and service process at
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the local McBurger Queen burger joint. Customers come in
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every once in a while, stand in line, eventually get served, and
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off they go. Generally speaking, what kind of model are we
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talking about here? (More than one answer below may be ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\ ||\\||\\




right.)


A) Discrete
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B) Continuous
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C) Stochastic
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D) Deterministic - correct answer✔✔(a) (because events such
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as arrivals and service completions only happen once in a while,
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