ISYE 6644 ACTUAL MIDTERM 2 EXAM QUESTIONS AND CORRECT
ANSWERS (100% CORRECT) ISYE 6644 QUESTIONS AND ANSWERS
FROM PAST REAL MIDTERM TEST
Why are things like Seize, Delay, Release in multiple templates? - CORRECT 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. - CORRECT ANSWERS-True
True or False? You are only allowed to schedule one type of failure for a particular resource. -
CORRECT ANSWERS-False
Which block is NOT in the Blocks template? - CORRECT 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
Attribute spreadsheet - CORRECT ANSWERS-The attribute spreadsheet keeps track of existing
attributes that you might define in an Assign
Arena Internal Variables - CORRECT ANSWERS-Arena keeps track of and continuously updates
lots of stuff as the simulation runs.
, Example:
- TNOW = current simulated time
- NR(Barber) = # of resource Barber's servers now working
- NQ(Process 1.Queue) = # customers in that queue
- Create 1.NumberOut = # of customers who have so far left the module named Create 1
Batch Module - CORRECT ANSWERS-- Combine "batch" multiple customers into one "super"
customers
- Batch Size = 3 accumulates 3 guys before sending off the super-customer
- If you want to eventually to reconstitute the original members, set Type = Temporary
Separate Module - CORRECT ANSWERS-- Duplicate a single entity, or split multiple entities
that had been combined in a Batch module
- If dealing with a Permanent batch, usually use Duplicate Original to get several customers all with the
same attributes
- If dealing with a Temporary batch, use Split Existing Batch to reproduce customers with original
attributes
Record Module - CORRECT ANSWERS--Collect statistics when an entity passes through the
module
True or False? RANDU is a pretty good generator - CORRECT ANSWERS-False
RANDU has severe problems with hyperplanes.
True or False? a = P(Reject H0 | H0 is true) is the probability of a Type 1 error - CORRECT
ANSWERS-True
True or False? All the Tech Support servers for our Call Center are equally skilled and have the same
concurrent work schedules - CORRECT ANSWERS-False.
-Some of the workers are more talented than others.
ANSWERS (100% CORRECT) ISYE 6644 QUESTIONS AND ANSWERS
FROM PAST REAL MIDTERM TEST
Why are things like Seize, Delay, Release in multiple templates? - CORRECT 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. - CORRECT ANSWERS-True
True or False? You are only allowed to schedule one type of failure for a particular resource. -
CORRECT ANSWERS-False
Which block is NOT in the Blocks template? - CORRECT 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
Attribute spreadsheet - CORRECT ANSWERS-The attribute spreadsheet keeps track of existing
attributes that you might define in an Assign
Arena Internal Variables - CORRECT ANSWERS-Arena keeps track of and continuously updates
lots of stuff as the simulation runs.
, Example:
- TNOW = current simulated time
- NR(Barber) = # of resource Barber's servers now working
- NQ(Process 1.Queue) = # customers in that queue
- Create 1.NumberOut = # of customers who have so far left the module named Create 1
Batch Module - CORRECT ANSWERS-- Combine "batch" multiple customers into one "super"
customers
- Batch Size = 3 accumulates 3 guys before sending off the super-customer
- If you want to eventually to reconstitute the original members, set Type = Temporary
Separate Module - CORRECT ANSWERS-- Duplicate a single entity, or split multiple entities
that had been combined in a Batch module
- If dealing with a Permanent batch, usually use Duplicate Original to get several customers all with the
same attributes
- If dealing with a Temporary batch, use Split Existing Batch to reproduce customers with original
attributes
Record Module - CORRECT ANSWERS--Collect statistics when an entity passes through the
module
True or False? RANDU is a pretty good generator - CORRECT ANSWERS-False
RANDU has severe problems with hyperplanes.
True or False? a = P(Reject H0 | H0 is true) is the probability of a Type 1 error - CORRECT
ANSWERS-True
True or False? All the Tech Support servers for our Call Center are equally skilled and have the same
concurrent work schedules - CORRECT ANSWERS-False.
-Some of the workers are more talented than others.
