ISYE 6644 MIDTERM 2 QUESTIONS & ANSWERS
True or False? You can pre-assign a service time as an attribute before you actually get
to the server that you'll be using - Answers -True
True or False? If you have Create module generating one-at-a-time customer arrivals,
then it is not possible to use a different Create module with 4-at-a-time customer
arrivals. - Answers -False
True or False? Fake customers can be used to schedule machine breakdowns, keep
track of which time period the simulation is currently in, and carry out other duties not
associated with actual customers. - Answers -True
Which module/spreadsheet is NOT in the Advanced Process panel? - Answers -
Process Model
- The process model is in the Basic Process panel.
Advanced Process Panel
-Seize module
-Delay module
-Release module
-Expression spreadsheets
-Failure spreadsheets
Why are things like Seize, Delay, Release in multiple templates? - Answers -The
process module does not allow us to use Seize, Delay, Release with sufficient
generality.
True or False? You can schedule failures to occur after a random number of customers
have used a resource or after a random amount of time has passed. - Answers -True
True or False? You are only allowed to schedule one type of failure for a particular
resource. - Answers -False
Which block is NOT in the Blocks template? - Answers -Process Block
- No such thing, but the Process module is in the Basic Process panel
Blocks template:
- Seize block
- Delay block
- Release block
- Alter block
- Queue block
, True or False? The Queue block can connect up to the Seize module from the
Advanced Process template. - Answers -False
Which kinds of sets are allowed? - Answers -- Resource set
- Counter set
- Entity type set
- Entity picture set
True or False? It is possible for the resource Joey to be a member of three different
resource sets - Answers -True
True or False? For easy display and organizational purposes, our Call Center simulation
is divided into several submodules. - Answers -True
True or False? The customer arrival pattern for our Call Center changes over the day
and is therefore modeled as a nonhomogeneous Poisson process. - Answers -True
True or False? All the Tech Support servers for our Call Center are equally skilled and
have the same concurrent work schedules - Answers -False.
-Some of the workers are more talented than others.
- All the servers have different schedules
True or False? In the Call Center demo, fake customers are used to update a variable
that keeps track of the period of the day - Answers -True
Consider our Call Center demo, What is the following Seize request asking for? Set,
Product 1, 1, Preferred Order, Agent. - Answers -Grab a random server from the set
Product 1 and store the guy's identity in the attribute Agent
True or False. In our Inventory demo, fake customers are used to initiate a periodic
inventory review. - Answers -True
Consider the Arena expression DISC(0.3, 1, 0.5, 3, 1.0, 6), which is a discrete random
variable. What is the random variable's expected value? - Answers -(0.3)(1) + (0.5-
0.3)(3) + (1.0 - 0.5)(6) = 3.9
Consider a vanilla (s,S) = (5,12) inventory policy. If my inventory slips to 3, how many
items do I order? - Answers -Since 3 < s, we order S - 3 then 12-3 = 9
What is the value of this logic expression ((1 == 1) * 10) + ((1==0) * 5)? - Answers -
Since "1==1" is true and "1==0" is false. we have
((1==1) * 10) + ((1==0) * 5) = (1*10) + (0*5) = 10
True or False? You can pre-assign a service time as an attribute before you actually get
to the server that you'll be using - Answers -True
True or False? If you have Create module generating one-at-a-time customer arrivals,
then it is not possible to use a different Create module with 4-at-a-time customer
arrivals. - Answers -False
True or False? Fake customers can be used to schedule machine breakdowns, keep
track of which time period the simulation is currently in, and carry out other duties not
associated with actual customers. - Answers -True
Which module/spreadsheet is NOT in the Advanced Process panel? - Answers -
Process Model
- The process model is in the Basic Process panel.
Advanced Process Panel
-Seize module
-Delay module
-Release module
-Expression spreadsheets
-Failure spreadsheets
Why are things like Seize, Delay, Release in multiple templates? - Answers -The
process module does not allow us to use Seize, Delay, Release with sufficient
generality.
True or False? You can schedule failures to occur after a random number of customers
have used a resource or after a random amount of time has passed. - Answers -True
True or False? You are only allowed to schedule one type of failure for a particular
resource. - Answers -False
Which block is NOT in the Blocks template? - Answers -Process Block
- No such thing, but the Process module is in the Basic Process panel
Blocks template:
- Seize block
- Delay block
- Release block
- Alter block
- Queue block
, True or False? The Queue block can connect up to the Seize module from the
Advanced Process template. - Answers -False
Which kinds of sets are allowed? - Answers -- Resource set
- Counter set
- Entity type set
- Entity picture set
True or False? It is possible for the resource Joey to be a member of three different
resource sets - Answers -True
True or False? For easy display and organizational purposes, our Call Center simulation
is divided into several submodules. - Answers -True
True or False? The customer arrival pattern for our Call Center changes over the day
and is therefore modeled as a nonhomogeneous Poisson process. - Answers -True
True or False? All the Tech Support servers for our Call Center are equally skilled and
have the same concurrent work schedules - Answers -False.
-Some of the workers are more talented than others.
- All the servers have different schedules
True or False? In the Call Center demo, fake customers are used to update a variable
that keeps track of the period of the day - Answers -True
Consider our Call Center demo, What is the following Seize request asking for? Set,
Product 1, 1, Preferred Order, Agent. - Answers -Grab a random server from the set
Product 1 and store the guy's identity in the attribute Agent
True or False. In our Inventory demo, fake customers are used to initiate a periodic
inventory review. - Answers -True
Consider the Arena expression DISC(0.3, 1, 0.5, 3, 1.0, 6), which is a discrete random
variable. What is the random variable's expected value? - Answers -(0.3)(1) + (0.5-
0.3)(3) + (1.0 - 0.5)(6) = 3.9
Consider a vanilla (s,S) = (5,12) inventory policy. If my inventory slips to 3, how many
items do I order? - Answers -Since 3 < s, we order S - 3 then 12-3 = 9
What is the value of this logic expression ((1 == 1) * 10) + ((1==0) * 5)? - Answers -
Since "1==1" is true and "1==0" is false. we have
((1==1) * 10) + ((1==0) * 5) = (1*10) + (0*5) = 10
