1. What is a primary difference between Conventional and Object-Oriented (OO) design approaches?
a) Conventional design focuses on procedural programming, while OO design emphasizes encapsulation, inheritance, and polymorphism.
b) Conventional design emphasizes code reusability, while OO design prioritizes sequential execution.
c) Conventional design relies on functional decomposition, while OO design emphasizes message passing between objects.
d) Conventional design uses relational databases, while OO design favors NoSQL databases.
Answer: a) Conventional design focuses on procedural programming, while OO design emphasizes encapsulation, inheritance, and polymorphism.
Explanation: Conventional design typically involves breaking down a problem into smaller tasks and solving them sequentially, often through procedural programming techniques. Object-Oriented design, on the other hand, focuses on organizing software components into objects that encapsulate data and behavior, utilize inheritance for code reuse, and employ polymorphism for flexibility and abstraction.
2. Which design technique involves creating CRC cards?
a) Behavioral Modeling
b) Interaction Diagram
c) State Chart Diagram
d) Class Responsibility Collaboration (CRC) Cards
Answer: d) Class Responsibility Collaboration (CRC) Cards
Explanation: CRC cards are a design technique used in the Object-Oriented paradigm to define classes, their responsibilities, and collaborations with other classes.
3. Which diagram is primarily used to model the dynamic behavior of a system’s components?
a) Interaction Diagram
b) State Chart Diagram
c) Component Diagram
d) Deployment Diagram
Answer: a) Interaction Diagram
Explanation: Interaction diagrams, such as sequence diagrams and communication diagrams, illustrate how objects interact with each other dynamically during the execution of a system.
4. In Object-Oriented design, what does a State Chart Diagram represent?
a) Static structure of classes and their relationships
b) Sequential flow of processes
c) Dynamic behavior of an individual object
d) State transitions and behaviors of an object
Answer: d) State transitions and behaviors of an object
Explanation: State Chart Diagrams in Object-Oriented design illustrate the various states an object can be in and the transitions between those states based on events or conditions.
5. Which diagram illustrates the physical deployment of software components across hardware nodes?
a) Interaction Diagram
b) State Chart Diagram
c) Component Diagram
d) Deployment Diagram
Answer: d) Deployment Diagram
Explanation: Deployment diagrams in UML represent the physical deployment of software components and their relationships on hardware nodes, such as servers or devices.
6. In the context of Object-Oriented Design, what does the term “Behavioral Modeling” primarily refer to?
a) Modeling the static structure of a system
b) Describing the interactions between objects during execution
c) Representing the distribution of software components across hardware nodes
d) Defining the states and transitions of an object
Answer: b) Describing the interactions between objects during execution
Explanation: Behavioral modeling focuses on modeling how objects interact with each other dynamically during the execution of a system, typically represented using interaction diagrams like sequence diagrams or communication diagrams.
7. Which design technique is used to capture the responsibilities and collaborations of classes in Object-Oriented design?
a) Sequence Diagram
b) Component Diagram
c) CRC Cards
d) Deployment Diagram
Answer: c) CRC Cards
Explanation: Class Responsibility Collaboration (CRC) Cards are used in Object-Oriented design to capture the responsibilities of classes and their collaborations with other classes.
8. What does a Component Diagram primarily depict?
a) Static structure of classes and their relationships
b) Dynamic behavior of objects
c) Physical deployment of software components
d) Sequence of method invocations
Answer: c) Physical deployment of software components
Explanation: Component diagrams illustrate the physical deployment of software components and their relationships on hardware nodes.
9. Which UML diagram is most suitable for representing the flow of messages between objects in a system?
a) Class Diagram
b) Sequence Diagram
c) State Chart Diagram
d) Deployment Diagram
Answer: b) Sequence Diagram
Explanation: Sequence diagrams are used to represent the flow of messages between objects in a system over time, illustrating the sequence of interactions.
10. Which design technique involves breaking down a system’s behavior into states and transitions?
a) Sequence Diagram
b) State Chart Diagram
c) Component Diagram
d) Deployment Diagram
Answer: b) State Chart Diagram
Explanation: State Chart Diagrams are used to model the behavior of an object by depicting its various states and transitions between those states based on events or conditions.