MODSIM RETAKE MIDTERMS

The 'Monte Carlo' method, a foundational technique in simulation that uses random sampling, was originally developed by researchers working on what project? Choices: The Human Genome Project; The Apollo space program; The ENIAC computer; The Manhattan Project

The Manhattan Project

Which simulation clock advancement approach is generally more efficient because it skips periods of system inactivity and moves directly to the next scheduled event? Choices: Deterministic Advance; Fixed-increment Time Advance; Real-time Simulation; Next-Event Time Advance

Next-Event Time Advance

Which MATLAB function returns the number of elements in a vector or array? Choices: numel(); count(); size(); length()

numel()

The principle of modeling that involves combining multiple individual components into a single, larger object to simplify the model is called: Choices: Accuracy; Block Building; Aggregation; Relevance

Aggregation

In MATLAB, if you do not explicitly specify a data type for a number (e.g., x = 10), what is its default class? Choices: int32; char; double; single

double

In the context of a system, a process that causes changes (e.g., a 'check-out' in a supermarket model) is referred to as a(n): Choices: State; Attribute; Activity; Entity

Activity

The set of all possible outcomes of a random experiment is called the: Choices: Event Space; Sample Space; Sigma Algebra; Probability Measure

Sample Space

A function where each element of the domain set maps to a unique element of the codomain set is said to be: Choices: Invertible; Onto; Continuous; One-to-one

One-to-one

A queuing system where customers are served in a random order, regardless of when they arrived, is following which discipline? Choices: SIRO; FIFO; LIFO; Priority

SIRO

An activity that occurs entirely within the system boundary (e.g., the check-out process inside a supermarket model) is classified as: Choices: Exogenous; Endogenous; Deterministic; Stochastic

Endogenous

What is the key characteristic of the Uniform distribution? Choices: It models the time between random events.; It has a bell-shaped curve.; All outcomes within a given range are equally likely.; It is defined by a minimum, maximum, and most likely value.

All outcomes within a given range are equally likely.

In a discrete-event simulation model of a manufacturing plant, the machines that process parts would be classified as: Choices: Entities; Queues; Resources; Attributes

Resources

What is the purpose of the clc command in MATLAB? Choices: To clear the command history; To close all open figure windows; To clear all variables from the workspace; To clear the text from the Command Window

To clear the text from the Command Window

The 'imitation of the operation of a real-world process or system over a period of time' is the definition of: Choices: Analysis; Visualization; Modeling; Simulation

Simulation

A customer who arrives at a store, sees a long line, and immediately decides not to enter the queue at all is an example of which type of customer behavior? Choices: Jockeying; Reneging; Balking; Faffing

Balking

In a live simulation exercise, the participants are: Choices: Real people operating simulated systems.; Simulated people operating simulated systems.; A combination of real and simulated people.; Real people operating real systems.

Real people operating simulated systems.

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N/A

The Triangular distribution is most useful in situations where the exact form of a distribution is not known, but you have reasonable estimates for the: Choices: Mean, median, and mode; Mean and standard deviation; Minimum, maximum, and most likely values; Arrival rate and service rate

Minimum, maximum, and most likely values

A modeler decides to exclude the color of cars when simulating traffic flow, focusing only on variables like speed and arrival rates. This decision best exemplifies which core principle of modeling? Choices: Aggregation; Block Building; Accuracy; Relevance

Relevance

A system model where the state variables change continuously with respect to time, often described by differential equations, is known as a: Choices: Discrete System; Closed System; Stochastic System; Continuous System

Continuous System

In a discrete-event simulation, what is the term for a property or variable (like arrival time or priority level) that is carried along with an individual entity as it moves through the system? Choices: Event; State; Resource; Attribute

Attribute

To delete the third element from a vector named my_vec, which command is correct? Choices: my_vec(3) = 0; my_vec(3) = []; delete(my_vec, 3); my_vec - my_vec(3)

my_vec(3) = []

A system that has no interaction with its environment is known as a(n) _ system. Choices: Closed; Notional; Open; Stochastic

Closed

A fast-food restaurant where customers wait in a single line to be served by one of several available cashiers is an example of what type of queuing system? Choices: Single Server, Multi-Phase; Single Server, Single Phase; Multiple Server, Multi-Phase; Multiple Server, Single Phase

Multiple Server, Single Phase

Which of the following relational operators in MATLAB means 'not equal to'? Choices: !=; !==; ~=; <>

~=

Which of these functions would display this 3D plot? Choices: contour (A); plot3 (A); surf (A); surfC (A)

surf (A)

What will be displayed in the Command Window when LINE 14 is executed? Choices: Encoded Message: vq54; Encoded Message: wq65; Encoded Message: mx51; Encoded Message: wq32

Encoded Message: wq65

Which of these code snippets would display this kind of plot? Choices: plot(x,y,'-',x,z,'--'); plot3(x,y,z); plot(x,y, 'r--x'); surfc (A);

plot3(x,y,z)

What will be displayed in the Command Window when LINE 11 is executed? Choices: 0 1 2 3 4 5 6 7 8 9 10; 0 2 4 6 8 10; 0 14 36 66 104 150; ERROR

0 2 4 6 8 10

What will be displayed in the Command Window when LINE 12 is executed? Choices: The student in row 2, column 3 has ID: 106; The student in row 2, column 3 has ID: 104; The student in row 2, column 3 has ID: 101; ERROR

The student in row 2, column 3 has ID: 106