ISYE6644 (Simulation) Midterm 1 ACTUAL UPDATED QUESTIONS AND CORRECT
ANSWERS
What are some characteristics of simulation models? 1. Discrete (vs. continuous)
2. Stochastic (vs. deterministic)
3. Dynamic (vs. static)
What is simulation? Simulation is the 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 real system that is represented.
What is simulation good for? 1. Describe / analyze real or conceptual system behavior.
2. Ask "what if" questions.
3. Aid in system design and optimization
4. Can simulate almost anything
What are the reasons to simulate? 1. Will the system accomplish its goals?
2. Current system won't accomplish its goals, now what?
3. Need incremental improvement.
4. Create a specification or action plan
5. Solve a problem, like a bottleneck.
6. Resolve disputes
7. Sell an idea
What are the advantages of simulation? 1. Can study models too complicated for analytical / numerical treatment
2. Study detailed relations that might be lost in the analytical or numerical
treatment
3. Use as a basis for experimental studies of systems
4. Use to check results and give credibility to conclusions obtained by other
methods.
5. Reduce design blunders
6. Really nice demo method
7. (sometimes) very easy
What are the disadvantages of simulation? 1. Sometimes not so easy
2. Sometimes very time consuming / costly
3. Simulations give "random" output (and lots of misinterpretation of results is
possible)
4. To do a certain problem, better methods than simulation may exist
, We are interested in modeling the arrival and service (a) (because events such as arrivals and service completions only happen once in
process at the local McBurger Queen burger joint. a while, as opposed to continuously); and (c) (because customer arrival times,
Customers come in every once in a while, stand in line, service times, shift changes, etc., are all random).
eventually get served, and off they go. Generally
speaking, what kind of model are we talking about here?
(More than one answer below may be right.)
A) Discrete
B) Continuous
C) Stochastic
D) Deterministic
Which of the following can be regarded as advantages of A) Simulation enables you to study models too complicated for analytical or
simulation? (More than one answer below may be right.) numerical treatment.
B) Simulations can serve as very pretty demos that even University of Georgia
A) Simulation enables you to study models too graduates can understand.
complicated for analytical or numerical treatment. C) Simulation can be used to study detailed relations that might be lost in an
B) Simulations can serve as very pretty demos that even analytical or numerical treatment.
University of Georgia graduates can understand.
C) Simulation can be used to study detailed relations that
might be lost in an analytical or numerical treatment.
D) Simulations are often tedious and time-consuming to
produce.
Who is William Gosset? A) He invented the t distribution that is used ubiquitously in statistics.
A) He invented the t distribution that is used ubiquitously
in statistics.
B) He invented the s distribution that is used ubiquitously
in statistics.
C) He invented tea.
D) He invented the word "ubiquitous".
E) He is the brother of Louis Gossett Jr., best known for his
fine acting in many films, including An Officer and a
Gentleman.
What was the first use of a computer simulation? Stan Ulam and Johnny von Neumann in 1946 after world war 2. They used
simulation in the context of the development of the H bomb.
The simulated thermonuclear reactions actually, chain reactions.
What was the main development in the simulation field in Industrial applications
the 1960s? -manufacturing
-queueing models
Who was Harry Markowitz? He was one of the first guys to develop a language called SIMSCRIPT. He also
won a nobel prize for some of the work he did in optimizing financial portfolios
(portfolio theory).
ANSWERS
What are some characteristics of simulation models? 1. Discrete (vs. continuous)
2. Stochastic (vs. deterministic)
3. Dynamic (vs. static)
What is simulation? Simulation is the 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 real system that is represented.
What is simulation good for? 1. Describe / analyze real or conceptual system behavior.
2. Ask "what if" questions.
3. Aid in system design and optimization
4. Can simulate almost anything
What are the reasons to simulate? 1. Will the system accomplish its goals?
2. Current system won't accomplish its goals, now what?
3. Need incremental improvement.
4. Create a specification or action plan
5. Solve a problem, like a bottleneck.
6. Resolve disputes
7. Sell an idea
What are the advantages of simulation? 1. Can study models too complicated for analytical / numerical treatment
2. Study detailed relations that might be lost in the analytical or numerical
treatment
3. Use as a basis for experimental studies of systems
4. Use to check results and give credibility to conclusions obtained by other
methods.
5. Reduce design blunders
6. Really nice demo method
7. (sometimes) very easy
What are the disadvantages of simulation? 1. Sometimes not so easy
2. Sometimes very time consuming / costly
3. Simulations give "random" output (and lots of misinterpretation of results is
possible)
4. To do a certain problem, better methods than simulation may exist
, We are interested in modeling the arrival and service (a) (because events such as arrivals and service completions only happen once in
process at the local McBurger Queen burger joint. a while, as opposed to continuously); and (c) (because customer arrival times,
Customers come in every once in a while, stand in line, service times, shift changes, etc., are all random).
eventually get served, and off they go. Generally
speaking, what kind of model are we talking about here?
(More than one answer below may be right.)
A) Discrete
B) Continuous
C) Stochastic
D) Deterministic
Which of the following can be regarded as advantages of A) Simulation enables you to study models too complicated for analytical or
simulation? (More than one answer below may be right.) numerical treatment.
B) Simulations can serve as very pretty demos that even University of Georgia
A) Simulation enables you to study models too graduates can understand.
complicated for analytical or numerical treatment. C) Simulation can be used to study detailed relations that might be lost in an
B) Simulations can serve as very pretty demos that even analytical or numerical treatment.
University of Georgia graduates can understand.
C) Simulation can be used to study detailed relations that
might be lost in an analytical or numerical treatment.
D) Simulations are often tedious and time-consuming to
produce.
Who is William Gosset? A) He invented the t distribution that is used ubiquitously in statistics.
A) He invented the t distribution that is used ubiquitously
in statistics.
B) He invented the s distribution that is used ubiquitously
in statistics.
C) He invented tea.
D) He invented the word "ubiquitous".
E) He is the brother of Louis Gossett Jr., best known for his
fine acting in many films, including An Officer and a
Gentleman.
What was the first use of a computer simulation? Stan Ulam and Johnny von Neumann in 1946 after world war 2. They used
simulation in the context of the development of the H bomb.
The simulated thermonuclear reactions actually, chain reactions.
What was the main development in the simulation field in Industrial applications
the 1960s? -manufacturing
-queueing models
Who was Harry Markowitz? He was one of the first guys to develop a language called SIMSCRIPT. He also
won a nobel prize for some of the work he did in optimizing financial portfolios
(portfolio theory).
