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Welcome to the Modeling MCQs Page

Dive deep into the fascinating world of Modeling with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Modeling, a crucial aspect of Software Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Modeling, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Software Engineering.

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Check out the MCQs below to embark on an enriching journey through Modeling. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Software Engineering.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Modeling. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Modeling MCQs | Page 12 of 15

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Q111.
What does the State Machine Diagram model?

a.

The life cycle of an object instance

b.

The behavior of objects over time

c.

The classical finite state machine model

d.

The explicit state of a node

Discuss
Answer: (a).The life cycle of an object instance Explanation:The State Machine Diagram models the life cycle of an object instance, which includes its creation, updates, and destruction.
Q112.
How is the classical finite state machine model extended when used to model the behavior of objects over time?

a.

By adding local variables to the model

b.

By coding all necessary information in the state

c.

By reducing the number of states

d.

By testing the value of variables

Discuss
Answer: (a).By adding local variables to the model Explanation:The classical finite state machine model is usually extended by adding local variables to the model, reducing the number of states, and allowing for state transitions to change the values of variables.
Q113.
What is the purpose of local variables in the extended finite state machine model?

a.

To reduce the number of states

b.

To test the value of variables

c.

To change the values of variables

d.

All of the above

Discuss
Answer: (d).All of the above Explanation:The purpose of local variables in the extended finite state machine model is to reduce the number of states, test the value of variables, and change the values of variables.
Q114.
What is a state transition diagram used for in modeling an object's life cycle?

a.

To depict the possible states of an object and the transitions between those states

b.

To model the behavior of objects over time

c.

To model the behavior of objects in different states

d.

To model the behavior of objects in only one state

Discuss
Answer: (a).To depict the possible states of an object and the transitions between those states Explanation:State transition diagrams are a good help in modeling the life cycle of an object. They depict the possible states of an object and the transitions between those states.
Q115.
How are local variables used in the extended finite state machine model?

a.

To decrease the number of states

b.

To increase the number of states

c.

To only change the values of variables

d.

To only test the values of variables

Discuss
Answer: (a).To decrease the number of states Explanation:Local variables are used in the extended finite state machine model to decrease the number of states in the model. They are also used to change the values of variables, test the values of variables, and guard transitions.
Q116.
What triggers the initial transition in a finite state machine?

a.

Input events

b.

Output actions

c.

Hierarchy

d.

None of the above

Discuss
Answer: (a).Input events Explanation:When a person becomes a member of the library, this triggers the initial transition.
Q117.
What do input events do in a finite state machine?

a.

They trigger transitions

b.

They do not affect the state machine

c.

They cause changes in the local variables

d.

None of the above

Discuss
Answer: (a).They trigger transitions Explanation:Input events trigger transitions in all modeling methods that are known.
Q118.
How are output actions associated with a finite state machine?

a.

With a transition

b.

With a state

c.

They are not associated with a state machine

d.

Both a and b

Discuss
Answer: (d).Both a and b Explanation:Output actions can be associated with either a transition (Mealy machine) or a state (Moore machine).
Q119.
What is the expressive power of Mealy and Moore machines?

a.

Mealy machines are more expressive than Moore machines

b.

Moore machines are more expressive than Mealy machines

c.

Both have the same expressive power

d.

None of the above

Discuss
Answer: (c).Both have the same expressive power Explanation:In a formal sense, Mealy machines and Moore machines have the same expressive power.
Q120.
What is used to add structure to a finite state machine to make it less unwieldy?

a.

Hierarchy

b.

Local variables

c.

Input events

d.

Output actions

Discuss
Answer: (a).Hierarchy Explanation:One may add some structure to a finite state machine through a hierarchy, so that part of the model may be compressed into one state.
Page 12 of 15

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