Architecture And Design

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Architecture And Design - Quiz

SDP 05


Questions and Answers
  • 1. 

    What are the names of the models in software’s canonical model structure?

    • A.

      A. Domain, Design, Development

    • B.

      B. Conceptual, Design, Code

    • C.

      C. Conceptual, Architecture, Development

    • D.

      D. Domain, Design, Code

    • E.

      None of the above

    Correct Answer
    D. D. Domain, Design, Code
    Explanation
    The correct answer is d. Domain, Design, Code. In software's canonical model structure, the names of the models are Domain, Design, and Code. The Domain model represents the real-world concepts and rules, the Design model represents the software architecture and components, and the Code model represents the actual implementation of the software in a programming language. This structure helps in organizing and understanding the different aspects of the software development process.

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  • 2. 

    The Refinement relationship enables the architect to:

    • A.

      A. A type that appears in one model also appears in another.

    • B.

      B. Defines the correspondence between two models to show consistency

    • C.

      C. Allows one to carry constraints from one model to another

    • D.

      D. Both a and c

    • E.

      E. Both b and c

    Correct Answer
    A. A. A type that appears in one model also appears in another.
    Explanation
    The refinement relationship enables the architect to establish a connection between two models, where a type that appears in one model also appears in another. This relationship ensures consistency and allows for the transfer of constraints from one model to another. Therefore, the correct answer is a.

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  • 3. 

    Abstractions are:

    • A.

      A. Models of design.

    • B.

      B. Different perspectives.

    • C.

      C. Very high-level representations of the system.

    • D.

      D. Both a and b

    • E.

      E. Both a and c

    Correct Answer
    B. B. Different perspectives.
    Explanation
    Abstractions are different perspectives because they allow us to view a system or design from various angles or levels of detail. They provide a simplified representation of complex systems, allowing us to focus on specific aspects or features. Abstractions help in understanding and analyzing the system by breaking it down into manageable parts and providing different viewpoints. Therefore, the correct answer is b. Different perspectives.

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  • 4. 

    Every project should document its architecture.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    While it is generally recommended to document the architecture of a project, it is not an absolute requirement for every project. The decision to document the architecture depends on various factors such as the complexity of the project, the size of the team, the need for future maintenance or scalability, and the project's specific requirements. Some smaller or simpler projects may not require extensive documentation of their architecture, whereas larger or more complex projects may benefit from having detailed documentation to aid in understanding, communication, and future development.

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  • 5. 

    Architecture documents are abstractions of the system. 

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Architecture documents are abstractions of the system because they provide a high-level overview of the system's structure, components, and interactions. These documents focus on capturing the essential elements and relationships, while omitting unnecessary details. By abstracting the system, architecture documents help stakeholders understand the system's design and make informed decisions. They serve as a blueprint for development, communication, and collaboration among team members. Therefore, it is true that architecture documents are abstractions of the system.

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  • 6. 

    A good set of architectural documents will completely describe the system

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    A good set of architectural documents may provide a comprehensive overview of the system, but it is unlikely to completely describe the system. Architecture documents typically focus on high-level design decisions, key components, and their interactions. However, they may not cover every single detail, implementation specifics, or changes that occur over time. Therefore, while architectural documents are valuable for understanding the system's structure and design principles, they are not expected to provide an exhaustive and complete description of the entire system.

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  • 7. 

    All design decisions should be made before coding begins 

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    This statement is false because design decisions can and often should be made throughout the coding process. As developers gain a better understanding of the requirements and constraints of the project, they may need to adjust their design decisions accordingly. Additionally, new ideas or technologies may emerge during the coding process that could warrant changes to the initial design. Therefore, design decisions are not fixed and can be made and modified as needed throughout the coding process.

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  • 8. 

    Different types of models are required in order to serve the needs of various stakeholders.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    This statement is incorrect. Different types of models are not required to serve the needs of various stakeholders. Models are tools used to represent and understand complex systems or concepts. While different stakeholders may have different needs and perspectives, it is not necessary to have different types of models to serve those needs. A single model can be used to address the requirements of multiple stakeholders by incorporating their perspectives and requirements into the model. Therefore, the correct answer is False.

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  • 9. 

    Of the following, which is the best reason to avoid domain analysis?

    • A.

      A. The domain is too simple to bother modeling.

    • B.

      B. Domain modeling is open-ended and is a never-ending analysis task.

    • C.

      C. The domain is irrelevant to your architecture choices.

    • D.

      D. The best way to learn the domain is incrementally.

    • E.

      E. It is someone else’s job to do requirements.

    Correct Answer
    B. B. Domain modeling is open-ended and is a never-ending analysis task.
    Explanation
    Domain modeling is open-ended and is a never-ending analysis task. This means that domain analysis is a continuous process that requires ongoing effort and resources. It involves understanding and documenting the complexities and intricacies of a specific domain, which can be time-consuming and challenging. Therefore, avoiding domain analysis may be the best option to prevent getting stuck in an endless analysis loop and allocate resources more efficiently to other tasks.

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  • 10. 

    UML has many great features but its use describing domain models should be restricted because

    • A.

      A. It takes too long to create the diagrams.

    • B.

      B. Good UML tools are too expensive.

    • C.

      C. It is not a language known by most non-developers.

    • D.

      D. Its use is incompatible with the goals of domain modeling.

    • E.

      E. The diagrams require you to include too much detail.

    Correct Answer
    C. C. It is not a language known by most non-developers.
  • 11. 

    OCL (Object Constraint Language)

    • A.

      A. Can be used to model the structure of a system.

    • B.

      B. Is similar to natural language in its support for modeling systems.

    • C.

      C. Can be used to model the relationships in the domain.

    • D.

      D. Is a language that is understood by most non-technical people.

    • E.

      E. Is good for describing invariants in a model.

    Correct Answer
    E. E. Is good for describing invariants in a model.
    Explanation
    OCL (Object Constraint Language) is a language that is good for describing invariants in a model. Invariants are conditions or rules that must always hold true in a system. OCL allows developers to express these invariants in a precise and formal way, making it easier to validate and enforce them. It is not used to model the structure of a system or the relationships in the domain, and it is not similar to natural language or understood by non-technical people.

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  • 12. 

    When modeling the domain we model its

    • A.

      A. Structure

    • B.

      B. Behavior

    • C.

      C. The way people will use the system

    • D.

      D. Both a and b

    • E.

      E. Both a and c

    Correct Answer
    D. D. Both a and b
    Explanation
    When modeling the domain, we need to consider both the structure and behavior of the system. The structure refers to the components, relationships, and organization of the system, while the behavior refers to the functionality and actions performed by the system. By modeling both aspects, we can create a comprehensive representation of the domain and ensure that the system meets the requirements and expectations. Additionally, considering the way people will use the system is also important to ensure that the system is user-friendly and meets the needs of the users. Therefore, the correct answer is d. Both a and b.

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  • 13. 

    Which of the following states that there are 2 persons associated with a contact and there can be any number of contacts?

    • A.

      1....2

    • B.

      * 1...2

    • C.

      2 *

    • D.

      * 2

    Correct Answer
    C. 2 *
    Explanation
    The answer is "2 *". This pattern indicates that there are two persons associated with a contact, represented by the numbers 1 and 2. The asterisk (*) represents any number of contacts, meaning there can be multiple contacts associated with the two persons.

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  • 14. 

    Which of the following statements is the most correct?

    • A.

      A) A deployment view shows how the system is installed in the target environment.

    • B.

      B) A deployment view shows how the system interacts with its environment.

    • C.

      C) A deployment view shows where process will run and how they will interact.

    • D.

      D) Both a and b

    • E.

      E) Both a and c

    Correct Answer
    C. C) A deployment view shows where process will run and how they will interact.
    Explanation
    A deployment view shows where process will run and how they will interact. This means that it provides information on the physical locations where different processes or components of a system will be deployed and how they will communicate with each other. It focuses on the distribution and communication aspects of the system rather than the installation or interaction with the environment. Therefore, option c) is the most correct statement.

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  • 15. 

    Which of the following statements is the most correct?

    • A.

      A) Components describe units of code.

    • B.

      B) Connectors are pathways of runtime interaction.

    • C.

      C) A module is associated with exactly one component.

    • D.

      D) Design decisions are clearly identifiable in views

    • E.

      E) Views always describe subsystems.

    Correct Answer
    A. A) Components describe units of code.
    Explanation
    Components are units of code that encapsulate a set of related functions and data. They are self-contained and can be reused in different contexts. This statement is the most correct because it accurately describes the purpose and nature of components in software development.

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  • 16. 

    Which of the following is true of a Context Diagram?

    • A.

      A) Describes how the software being created interacts with elements in its environment.

    • B.

      B) Can be based on a use case diagram.

    • C.

      C) Might show the Internet.

    • D.

      D) Describes what is in and what is outside the scope of the software project.

    • E.

      All of a-d

    Correct Answer
    E. All of a-d
    Explanation
    A context diagram is a high-level diagram that shows how the software being created interacts with elements in its environment. It describes the boundaries of the system and its interactions with external entities. It can be based on a use case diagram, which represents the interactions between actors (users, external systems) and the system. It might also show the Internet as an external entity. Additionally, a context diagram helps in defining what is included and what is excluded from the scope of the software project. Therefore, all options a-d are true statements about a context diagram.

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  • 17. 

    Three standard viewtypes for the Design Model are

    • A.

      A) Component and Connector, Designation, and Module

    • B.

      B) Runtime, Documentation, and Miscellaneous

    • C.

      C) Component, Module, Deployment

    • D.

      D) Component, Allocation, Module

    • E.

      E) Runtime, Allocation, Module

    Correct Answer
    E. E) Runtime, Allocation, Module
    Explanation
    The correct answer is e) Runtime, Allocation, Module. In the Design Model, the three standard viewtypes are Runtime, Allocation, and Module. The Runtime viewtype focuses on the behavior and interactions of components at runtime. The Allocation viewtype focuses on the mapping of software components to hardware resources. The Module viewtype focuses on the organization and structure of the software components. This combination of viewtypes allows for a comprehensive understanding of the design and implementation of a software system.

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  • 18. 

    Which of the following is not true about the Apache server?

    • A.

      A) Built in the pipe and filter style

    • B.

      B) Is designed to allow new code to be inserted easily

    • C.

      C) Was designed with few constraints to support the system’s performance goals

    • D.

      D) A web server

    • E.

      E) Was designed around the goal of modifiability

    Correct Answer
    C. C) Was designed with few constraints to support the system’s performance goals
    Explanation
    The correct answer is c) Was designed with few constraints to support the system’s performance goals. This statement is not true because the Apache server was actually designed with numerous constraints to support its performance goals. These constraints include efficiency, scalability, and reliability. Apache's design focuses on maximizing performance and handling a large number of simultaneous connections efficiently. The server's architecture and features are optimized for performance and responsiveness.

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  • 19. 

    A context diagram should include details related to quality concerns. 

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    A context diagram should include details related to quality concerns because it provides a high-level overview of a system or process and its interactions with external entities. Quality concerns, such as performance, reliability, and security, are important factors to consider when designing and analyzing a system. Including these details in a context diagram helps to ensure that the system meets the desired quality standards and can identify potential risks or issues that may impact the overall quality of the system.

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  • 20. 

    A port is a point of interaction in a component diagram

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    In a component diagram, a port represents a point of interaction between a component and its environment. It allows the component to send and receive messages to and from other components or external systems. Ports are used to model the interfaces of a component and show how it interacts with other components or external entities. Therefore, the statement "A port is a point of interaction in a component diagram" is true.

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  • 21. 

    A context diagram is similar to a snapshot in that the context is likely to change as the system runs

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    A context diagram is a visual representation that shows the interactions between a system and its external entities. It provides a high-level overview of the system and its boundaries. Like a snapshot, the context of a system is likely to change as it runs. This means that the interactions and relationships between the system and its external entities may evolve or vary over time. Therefore, the statement that a context diagram is similar to a snapshot in terms of the context changing as the system runs is true.

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  • 22. 

    A master model is the one used by the architect to include information from all three viewtypes

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    A master model is not used by the architect to include information from all three view types. The master model is a term used in software engineering to refer to a central model that is used as a reference or a template for creating other models. In the context of architecture, the master model may refer to a comprehensive model that includes information from different disciplines or viewpoints, but it does not specifically refer to the three view types. Therefore, the statement is false.

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  • 23. 

    A view is a projection of a model that reveals select details

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    A view is a representation or perspective of a model that allows us to see specific details or aspects of it. It is not a complete representation of the entire model but rather a selected projection that highlights certain elements. Therefore, the statement that a view is a projection of a model that reveals select details is accurate and true.

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  • 24. 

    An internals model can be used to identify boundary models of others

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    An internals model refers to an individual's understanding or representation of the world, which includes their own thoughts, beliefs, and perceptions. By having an internals model, one can gain insight into the mental processes and perspectives of others, allowing them to identify the boundary models of others. Boundary models refer to the limits or constraints that individuals have in their thinking or understanding. Therefore, it is true that an internals model can be used to identify boundary models of others.

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  • 25. 

    Which of the following DOES NOT describe risk in software development?

    • A.

      A. Something to worry about.

    • B.

      B. A cause of failure.

    • C.

      C. A chance of failure.

    • D.

      D. A primary driver of architecture.

    Correct Answer
    B. B. A cause of failure.
    Explanation
    Risk in software development is not necessarily a cause of failure, as it can also present opportunities for growth and improvement. While risk does involve the chance of failure, it is not solely responsible for causing failure. Risk can also be managed and mitigated through proper planning and decision-making. Additionally, risk is not always the primary driver of architecture, as other factors such as functionality and user requirements also play a significant role.

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  • 26. 

    Which of the following clearly describes the scope of a software project?

    • A.

      A. An internals diagram

    • B.

      B. A context diagram

    • C.

      C. A sequence diagram

    • D.

      D. A functionality scenario

    Correct Answer
    B. B. A context diagram
    Explanation
    A context diagram clearly describes the scope of a software project by illustrating the system being developed and its interactions with external entities. It shows the boundaries of the system and the relationships between the system and its environment. This diagram helps stakeholders understand the context in which the software will operate and allows for better communication and understanding of the project scope.

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  • 27. 

    Three styles of design are _______ .

    • A.

      A. risky, safe, and uncertain

    • B.

      B. planned, evolutionary, and minimal planned

    • C.

      C. spiral, waterfall, and agile

    • D.

      D. risk-based, architectural, and code-based

    Correct Answer
    B. B. planned, evolutionary, and minimal planned
    Explanation
    The correct answer is b. planned, evolutionary, and minimal planned. This answer suggests that there are three styles of design: planned, evolutionary, and minimal planned. These styles likely refer to different approaches or methodologies in the design process, with planned design involving careful planning and documentation, evolutionary design involving iterative and adaptive development, and minimal planned design focusing on simplicity and efficiency.

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  • 28. 

    A use case is _________.

    • A.

      A. a decision not to modify the system

    • B.

      B. a process that will run as part of the system

    • C.

      C. an argument that drives system design

    • D.

      D. a goal for actors the system interacts with

    • E.

      E. a diagram that shows what the system does

    Correct Answer
    D. D. a goal for actors the system interacts with
    Explanation
    A use case is a goal for actors the system interacts with. Use cases define the specific actions and interactions that actors (users or other systems) can perform with the system to achieve a desired outcome. They describe the functionality and behavior of the system from the perspective of the actors involved. Use cases help in understanding the requirements and designing the system to meet the needs of the actors. They are often represented in the form of diagrams that show the flow of events and the interactions between the actors and the system.

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  • 29. 

    The risk-driven approach is most difficult to apply to the ____________ software development process.

    • A.

      A. Waterfall

    • B.

      B. Interative

    • C.

      C. RUP

    • D.

      D. XP

    Correct Answer
    D. D. XP
    Explanation
    The risk-driven approach is most difficult to apply to the XP (Extreme Programming) software development process. This is because XP emphasizes frequent iterations and continuous feedback, which may not allow for a comprehensive risk assessment and mitigation strategy to be implemented. XP focuses on delivering working software quickly and responding to changing requirements, which may not align well with a risk-driven approach that requires more upfront planning and analysis.

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  • 30. 

    A specific architectural style is chosen for a project because ______ .

    • A.

      A. the architect has the most familiarity with it

    • B.

      B. the developers who will implement the system are most familiar with it

    • C.

      C. it is known to ensure quality attributes of concern

    • D.

      D. it will make the system easier to maintain

    • E.

      E. none of the above

    Correct Answer
    C. C. it is known to ensure quality attributes of concern
    Explanation
    The correct answer is c. it is known to ensure quality attributes of concern. This means that a specific architectural style is chosen for a project because it is known to provide the necessary qualities and attributes that are important for the project's success. This could include factors such as performance, scalability, security, maintainability, and other relevant considerations. By selecting an architectural style that is known to ensure these quality attributes, the project is more likely to meet its goals and requirements.

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  • 31. 

    _______ are approaches to decomposing a system.

    • A.

      A. Functionality, Archetypes, Jigsaw Puzzle

    • B.

      B. Functionality, Architectural Design, Orthogonal abstraction

    • C.

      C. Dominant Component, Attribute Driven Design, Ports

    • D.

      D. Architectural Style, Ports, Archetypes

    • E.

      E. Both a and d

    • F.

      F. Both c and d

    Correct Answer
    E. E. Both a and d
    Explanation
    The correct answer is e. Both a and d.

    This answer is correct because both options a and d mention different approaches to decomposing a system. Option a includes functionality, archetypes, and jigsaw puzzle as approaches to decomposing a system, while option d includes architectural style, ports, and archetypes as approaches to decomposing a system. Since both options mention valid approaches to decomposing a system, the correct answer is e.

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  • 32. 

    We need to document the software architect? (Check 4 right ans)

    • A.

      To ensure all the code is described

    • B.

      To make sure quality concerns have been addressed

    • C.

      There are sufficient perceived risks

    • D.

      Otherwise no one would know what to do

    • E.

      Because it provides a company with information to guarantee delivery of a project

    • F.

      Because doing so is a best practice for projects

    • G.

      Architecture documents should always be comprehensive.

    • H.

      Design should always precede coding.

    • I.

      Not all projects need to document their architecture.

    Correct Answer(s)
    B. To make sure quality concerns have been addressed
    C. There are sufficient perceived risks
    G. Architecture documents should always be comprehensive.
    H. Design should always precede coding.
    Explanation
    The software architect needs to be documented to ensure that quality concerns have been addressed and that there are sufficient perceived risks. This documentation also ensures that architecture documents are comprehensive and that design always precedes coding.

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  • 33. 

    Which of the following statements is the most correct?

    • A.

      A) A sequence diagram is used to model a sequence of activities associated with a use case.

    • B.

      B) A sequence diagram is used to model a sequence of messages exchanged among objects.

    • C.

      C) A sequence diagram is used to model a sequence of transitions among objects in a use case.

    • D.

      D) Both a and b

    • E.

      E) Both a and c.

    Correct Answer
    B. B) A sequence diagram is used to model a sequence of messages exchanged among objects.
    Explanation
    A sequence diagram is a type of UML diagram that is used to model the interactions and messages exchanged among objects in a system. It shows the sequence of events and the order in which messages are sent and received between objects. This diagram is commonly used to visualize the behavior of a system and to understand the flow of interactions between different objects. Therefore, option b) is the most correct statement as it accurately describes the purpose and functionality of a sequence diagram.

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  • 34. 

    Which of the following statements is the most correct?

    • A.

      A) United Models for Languages

    • B.

      B) Universal Modeling Language

    • C.

      C) Unified Modeling Language

    • D.

      D) United Modeling Language

    Correct Answer
    C. C) Unified Modeling Language
    Explanation
    The correct answer is c) Unified Modeling Language. Unified Modeling Language (UML) is a standardized modeling language used in software engineering to visually represent software systems. It provides a set of notations and diagrams to describe the structure, behavior, and interactions of the system. UML is widely used in the software development industry to communicate and document system designs.

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  • 35. 

    Which of the following is best describes UML?

    • A.

      A) UML is a combination of notations.

    • B.

      B) UML supports modeling multiple views of software.

    • C.

      C) UML has evolved over time.

    • D.

      D) UML was created by the OMG

    • E.

      E) All of a-d

    • F.

      F) Only a and d

    Correct Answer
    E. E) All of a-d
    Explanation
    UML, which stands for Unified Modeling Language, is best described as a combination of notations. It supports modeling multiple views of software and has evolved over time. Additionally, UML was created by the OMG (Object Management Group). Therefore, the correct answer is e) All of a-d.

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  • 36. 

    Three notations of UML are

    • A.

      A) Activity diagrams, Component diagrams, Construction diagrams

    • B.

      B) Component diagrams, Action diagrams, Sequence diagrams

    • C.

      C) Class diagrams, ER diagrams, Action diagrams

    • D.

      D) Canonical diagrams, Activity diagrams, Sequence diagrams

    • E.

      E) Class diagrams, Sequence diagrams, Use Case diagrams

    Correct Answer
    E. E) Class diagrams, Sequence diagrams, Use Case diagrams
    Explanation
    The correct answer is e) Class diagrams, Sequence diagrams, Use Case diagrams. UML (Unified Modeling Language) is a standardized modeling language used in software engineering to visually represent a system. Class diagrams are used to depict the structure of a system, showing the classes, their attributes, and relationships. Sequence diagrams illustrate the interactions between objects or components in a system, showing the order of messages exchanged. Use Case diagrams depict the functionality of a system from the perspective of its users, showing the different use cases and actors involved. These three notations are commonly used in UML to represent different aspects of a system.

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  • 37. 

    Which of the following is not a UML diagram?

    • A.

      Option 1

    • B.

      Asdsadasdasdasdas

    Correct Answer
    A. Option 1
  • 38. 

    Which of the following statements is the most correct?

    • A.

      A) A component diagram shows a configuration of the system at a given moment.

    • B.

      B) A component diagram shows all potential interactions among components in a view.

    • C.

      C) A component diagram can show instances of classes.

    • D.

      D) Both a and b.

    • E.

      E) Both b and c.

    Correct Answer
    E. E) Both b and c.
    Explanation
    A component diagram is a type of UML diagram that shows the organization and relationships between components in a system. Option b) states that a component diagram shows all potential interactions among components in a view, which is correct as it represents the connections and dependencies between components. Option c) states that a component diagram can show instances of classes, which is also correct as it can depict the specific instances of components in the system. Therefore, the most correct statement is e) Both b and c.

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  • 39. 

    Which of the following statements is the most correct?

    • A.

      A) Ports are represented using dots on a component border.

    • B.

      B) Each port on a component has exactly one interface associated with it.

    • C.

      C) Assembly connectors show the relationship between ports on the component’s boundary and its internals.

    • D.

      D) Lollipop symbol is used to represent provides interfaces.

    • E.

      E) Socket symbol is used to represent provides interfaces. +

    Correct Answer
    E. E) Socket symbol is used to represent provides interfaces. +
    Explanation
    The correct answer is e) Socket symbol is used to represent provides interfaces. This statement is the most correct because in component-based development, a socket symbol is used to represent a required interface, while a lollipop symbol is used to represent a provided interface. Therefore, the statement correctly identifies the symbol used to represent provides interfaces.

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  • 40. 

    Which of the following is/are not well supported by the component diagram notation? ___________.

    • A.

      A) Component Internals

    • B.

      B) Potential interactions with external components

    • C.

      C) Complex components

    • D.

      D) Complex connectors

    • E.

      E) None of a-d

    • F.

      F) Both a and d

    Correct Answer
    D. D) Complex connectors
    Explanation
    The component diagram notation is not well supported for representing complex connectors. Component diagrams are used to represent the structure of a system, including its components and their relationships, but they do not provide a detailed representation of the connectors between components. Instead, connectors are typically represented using simple lines or arrows, which may not adequately capture the complexity of the connections between components. Therefore, complex connectors are not well supported by the component diagram notation.

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  • 41. 

    The primary difference between component diagrams and sequence diagrams is

    • A.

      A) Component diagrams show all potential interactions among a group of components whereas sequence diagram shows the interactions involved in response to a particular kind of request.+

    • B.

      B) There is very little difference, they are just two different ways of viewing component interactions.

    • C.

      C) In component diagram the components use a rectangular shape with the component icon in the upper right corner but no component icon appears in sequence diagrams.

    • D.

      D) Component diagrams represent the code whereas sequence diagrams represent behavior.

    Correct Answer
    A. A) Component diagrams show all potential interactions among a group of components whereas sequence diagram shows the interactions involved in response to a particular kind of request.+
    Explanation
    Component diagrams and sequence diagrams serve different purposes in software design. Component diagrams depict the overall structure and relationships among a group of components, showcasing all potential interactions. On the other hand, sequence diagrams focus on illustrating the specific interactions that occur in response to a particular request. In other words, component diagrams provide a high-level view of the system's architecture, while sequence diagrams zoom in on the detailed behavior of the system in response to specific events or requests.

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  • 42. 

    UML provides special notation for a subsystem element because

    • A.

      A) Subsystem elements have critical differences from components, which must be represented.

    • B.

      B) Subsystem elements and component elements are not substantially different so there is no need for them.

    • C.

      C) Component elements have important aspects that are not representable using the provided subsystem element notation.

    • D.

      D) Both a and c

    • E.

      E) None of the above.

    Correct Answer
    B. B) Subsystem elements and component elements are not substantially different so there is no need for them.
  • 43. 

    Component details in UML can be shown as text within a compartment of a component. 

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    In UML, component details can be represented as text within a compartment of a component. This means that information about the component, such as its attributes or operations, can be displayed within the component's compartment. This allows for a clear and organized representation of the component's structure and functionality.

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  • 44. 

    Which of the following statements is the most correct? ____________ .

    • A.

      A) A class diagram shows a configuration of the system at a given moment.

    • B.

      B) A class diagram shows all potential interactions among components in a view.

    • C.

      C) A class diagram can show relationships between java interfaces and other classes.

    • D.

      D) Both a and b.

    • E.

      E) Both b and c.

    Correct Answer
    C. C) A class diagram can show relationships between java interfaces and other classes.
    Explanation
    A class diagram is a visual representation of the structure and relationships of classes in a system. It is used to depict the static structure of a system, showing the classes, their attributes, methods, and relationships. One of the key features of a class diagram is its ability to show relationships between different classes, including relationships between Java interfaces and other classes. Therefore, option c) is the most correct statement as it accurately describes the capability of a class diagram.

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  • 45. 

    Which of the following statements is the most correct? _________.

    • A.

      A) A class diagram for a module always has three components.

    • B.

      B) A class diagram shows relationships among code units.

    • C.

      C) A class diagram supports analyzing behavior of complex protocols.

    • D.

      D) Lollipop symbol is used to represent provides interfaces.

    • E.

      E) Socket symbol is used to represent provides interfaces.

    Correct Answer
    C. C) A class diagram supports analyzing behavior of complex protocols.
    Explanation
    A class diagram is a visual representation of the structure and relationships of classes in a system. It is commonly used in object-oriented programming to model the behavior and interactions between different classes. While options a) and b) are partially correct, they do not capture the full purpose of a class diagram. Option c) is the most correct because analyzing the behavior of complex protocols is one of the main uses of a class diagram. Options d) and e) are incorrect as the lollipop symbol represents an interface and the socket symbol represents a connection or communication between components, not specifically providing interfaces.

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  • 46. 

    Which of the following is(are) NOT well supported by the class diagram notation? ___________.

    • A.

      A) Identifying public and private members of a class.

    • B.

      B) Identifying which classes depend on other classes.

    • C.

      C) Discussing how the system will behave.

    • D.

      D) Discussing how to add newly required functionality to the system.

    • E.

      E) Both a and d

    Correct Answer
    C. C) Discussing how the system will behave.
  • 47. 

    Which of the following is/are NOT a benefit of including class diagrams in project documentation? _______

    • A.

      A) Help programmers understand the context of the code they are creating.

    • B.

      B) Help the project sponsors understand how the system will work.

    • C.

      C) Help the project manager identify responsible people for each of the coding tasks.

    • D.

      D) Help maintainers identify the source of bugs.

    • E.

      E) All of the above.

    Correct Answer
    B. B) Help the project sponsors understand how the system will work.
    Explanation
    Class diagrams are a visual representation of the structure and relationships of the classes in a system. They help programmers understand the context of the code they are creating by providing an overview of the system's architecture. They also help the project manager identify responsible people for coding tasks by showing the relationships between classes and modules. Additionally, class diagrams help maintainers identify the source of bugs by providing a clear depiction of the system's structure. Therefore, the correct answer is b) Help the project sponsors understand how the system will work.

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  • 48. 

    Class diagrams can be generated directly from code

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Class diagrams can be generated directly from code by using various tools and technologies. These tools analyze the code and extract information about the classes, their attributes, and their relationships. They then generate a visual representation of the classes and their relationships, which is known as a class diagram. This diagram helps in understanding the structure and organization of the code, making it easier to comprehend and maintain. Therefore, the statement "Class diagrams can be generated directly from code" is true.

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  • 49. 

     The process of creating class diagrams is a valuable activity during design

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Creating class diagrams is a valuable activity during design because it helps in visualizing the structure and relationships between classes in a system. Class diagrams provide a high-level overview of the system's architecture, allowing designers to identify and organize classes, their attributes, and their associations. This aids in understanding the system's functionality, facilitating communication among stakeholders, and guiding the implementation process. Class diagrams also serve as a blueprint for developers, helping them write code that aligns with the desired design. Overall, creating class diagrams is an essential step in the design phase of software development.

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  • 50. 

    All class diagrams created during design of a system should be maintained as part of the project documentation.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement suggests that all class diagrams created during the design of a system should be maintained as part of the project documentation. However, this is not necessarily true. While class diagrams are useful for understanding the structure of a system and can be helpful during the design phase, they may not always be necessary to include in the project documentation. The decision to include class diagrams in the documentation should be based on the specific requirements and needs of the project.

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