ISYE 6644 - GT PRACTICE EXAMINATION
2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ In an Arena PROCESS module, it is possible to do a DELAY without an
accompanying SEIZE or RELEAS
E. .
Answer: True
◍ What is an event?.
Answer: An event is a point in time at which the system state changes (and
which can't be predicted with certainty beforehand).Ex: an arrival event, a
departure event, a machine breakdown event.
◍ The Generate module can be found in the basic process template.
Answer: False
◍ Create module allows you to use a variety of interarrival distributions.
Answer: True
◍ TRUE or FALSE? Simulation outputs such as consecutive customer waiting
times are almost always independent and identically distributed normal
random variables..
Answer: False - Output is pretty much never i.i.d. normal
◍ In Arena, what modules generate customer arrivals, perform some action on
them, then remove them from the system?.
Answer: Create, Process, Dispose
◍ In Arena, a primitive QUEUE block can connect with a PROCESS module..
Answer: False
◍ What is the concept of double expectation?.
, Answer: Idea: the average expected value of all of the conditional expected
values is the overall population average.
◍ TRUE or FALSE? All random number generators perform pretty much the
same..
Answer: False
◍ What is the derivative of X^k.
Answer: kx^k-1
◍ In Arena, a DECIDE module can route customers probabilistically or
conditionally to multiple locations..
Answer: True
◍ What is the name of the primary modeling approach that we will be using in
this class, especially when we do
Arena?Event-schedulingProcess-interactioncontinuous modelingmixed
modelingevent-interaction.
Answer: process-interaction
◍ In Arena, it's perfectly OK to have a CREATE module generating
one-at-a-time customer arrivals, while also having a different CREATE
module with4-at-a-time customer arrivals elsewhere in the model..
Answer: True
◍ You can use the batch module to merge customers either permanently or
temporarily.
Answer: True
◍ When selecting a simulation language, what characteristics do you have to
take into consideration?CostEase of useModeling "world view" (e.g.,
event-scheduling or process-interaction)Random variate generation
capabilitiesoutput analysis capabilitiesall of the above.
Answer: all of the above
◍ Suppose X is a continuous random variable with cumulative distribution
function F(x). What is the distribution of the nasty random variable F(X)?A)
, NormalB) Unif (0,1)C) ExponentialD) Weibull.
Answer: Unif (0, 1) - this is the Inverse Transform Theorem
◍ If you have a temporary batch, then you can use the command Split Existing
Batch to reproduce entities with original attributes.
Answer: True
◍ What is a model?.
Answer: A model is an abstract representation of a system.
◍ What is unbiasedness?.
Answer: the expected value of Xbar (the sample mean) equals the actual
mean (mu)
◍ Let's simulate a bank that closes at 4:30 p.m. What kind of simulation
approach would you take?A) Steady-state simulationB) Terminating
simulationC) Arnold SChwarzenegger simulationD) I'm from the university
of georgia. What is simulation? and what is a bank?.
Answer: B) Terminating Simulation
◍ What is simulation good for?.
Answer: 1. Describe / analyze real or conceptual system behavior.2. Ask
"what if" questions.3. Aid in system design and optimization4. Can simulate
almost anything
◍ What is the derivative of e^x.
Answer: e^x
◍ Which modelling approach does Arena use?.
Answer: Process Interaction
◍ What are we allowed to do on the future event list?A) Insert new eventsB)
delete eventsC) move events aroundD) all of the above.
Answer: D) all of the above
◍ System Work in Progress (WIP) is an attribute.
Answer: False
◍ All of the Tech Support servers for our Arena Call Center simulation are
2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ In an Arena PROCESS module, it is possible to do a DELAY without an
accompanying SEIZE or RELEAS
E. .
Answer: True
◍ What is an event?.
Answer: An event is a point in time at which the system state changes (and
which can't be predicted with certainty beforehand).Ex: an arrival event, a
departure event, a machine breakdown event.
◍ The Generate module can be found in the basic process template.
Answer: False
◍ Create module allows you to use a variety of interarrival distributions.
Answer: True
◍ TRUE or FALSE? Simulation outputs such as consecutive customer waiting
times are almost always independent and identically distributed normal
random variables..
Answer: False - Output is pretty much never i.i.d. normal
◍ In Arena, what modules generate customer arrivals, perform some action on
them, then remove them from the system?.
Answer: Create, Process, Dispose
◍ In Arena, a primitive QUEUE block can connect with a PROCESS module..
Answer: False
◍ What is the concept of double expectation?.
, Answer: Idea: the average expected value of all of the conditional expected
values is the overall population average.
◍ TRUE or FALSE? All random number generators perform pretty much the
same..
Answer: False
◍ What is the derivative of X^k.
Answer: kx^k-1
◍ In Arena, a DECIDE module can route customers probabilistically or
conditionally to multiple locations..
Answer: True
◍ What is the name of the primary modeling approach that we will be using in
this class, especially when we do
Arena?Event-schedulingProcess-interactioncontinuous modelingmixed
modelingevent-interaction.
Answer: process-interaction
◍ In Arena, it's perfectly OK to have a CREATE module generating
one-at-a-time customer arrivals, while also having a different CREATE
module with4-at-a-time customer arrivals elsewhere in the model..
Answer: True
◍ You can use the batch module to merge customers either permanently or
temporarily.
Answer: True
◍ When selecting a simulation language, what characteristics do you have to
take into consideration?CostEase of useModeling "world view" (e.g.,
event-scheduling or process-interaction)Random variate generation
capabilitiesoutput analysis capabilitiesall of the above.
Answer: all of the above
◍ Suppose X is a continuous random variable with cumulative distribution
function F(x). What is the distribution of the nasty random variable F(X)?A)
, NormalB) Unif (0,1)C) ExponentialD) Weibull.
Answer: Unif (0, 1) - this is the Inverse Transform Theorem
◍ If you have a temporary batch, then you can use the command Split Existing
Batch to reproduce entities with original attributes.
Answer: True
◍ What is a model?.
Answer: A model is an abstract representation of a system.
◍ What is unbiasedness?.
Answer: the expected value of Xbar (the sample mean) equals the actual
mean (mu)
◍ Let's simulate a bank that closes at 4:30 p.m. What kind of simulation
approach would you take?A) Steady-state simulationB) Terminating
simulationC) Arnold SChwarzenegger simulationD) I'm from the university
of georgia. What is simulation? and what is a bank?.
Answer: B) Terminating Simulation
◍ What is simulation good for?.
Answer: 1. Describe / analyze real or conceptual system behavior.2. Ask
"what if" questions.3. Aid in system design and optimization4. Can simulate
almost anything
◍ What is the derivative of e^x.
Answer: e^x
◍ Which modelling approach does Arena use?.
Answer: Process Interaction
◍ What are we allowed to do on the future event list?A) Insert new eventsB)
delete eventsC) move events aroundD) all of the above.
Answer: D) all of the above
◍ System Work in Progress (WIP) is an attribute.
Answer: False
◍ All of the Tech Support servers for our Arena Call Center simulation are
