Sdp 05 Test
- 1.
What are the names of the models in software’s canonical model structure?
- A.
Domain,Design,Development
- B.
Conceptual,Design,Code
- C.
Conceptual,Architecture,Development
- D.
Domain,Design,Code
- E.
None of the above
Correct Answer
D. Domain,Design,CodeExplanation
The correct answer is Domain, Design, Code. In software's canonical model structure, the three main models are the Domain model, which represents the problem domain and the business logic; the Design model, which focuses on the software's architecture and design patterns; and the Code model, which refers to the actual implementation of the software in programming languages.Rate this question:
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- 2.
The Refinement relationship enables the architect to:
- A.
A type that appears in one model also appears in another
- B.
Defines the correspondence between two models to show consistency
- C.
Allows one to carry constraints from one model to another
- D.
Both a and c
- E.
Both b and c
Correct Answer
A. A type that appears in one model also appears in anotherExplanation
The Refinement relationship enables the architect to ensure that a type that appears in one model also appears in another. This means that any changes or updates made to the type in one model will be reflected in the other model as well, ensuring consistency and avoiding any discrepancies between the two models. Additionally, the Refinement relationship does not define the correspondence between two models or allow the carrying of constraints from one model to another.Rate this question:
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- 3.
Abstractions are:
- A.
Models of design
- B.
Different perspectives
- C.
Very high-level representations of the system
- D.
Both a and b
- E.
Both a and c
Correct Answer
B. Different perspectivesExplanation
Abstractions are different perspectives because they allow us to view a system or concept from various angles or viewpoints. They provide a simplified and high-level representation of the system, which helps in understanding and analyzing complex systems. By considering different perspectives, we can gain a deeper understanding and identify different aspects and features of the system, which can be useful in problem-solving and decision-making.Rate this question:
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- 4.
Of the following,which is the best reason to avoid domain analysis?
- A.
The domain is too simple to bother modeling
- B.
Domain modeling is open-ended and is a never-ending analysis task
- C.
The domain is irrelevant to your architecture choices
- D.
The best way to learn the domain is incrementally
- E.
It’s someone else’s job to do requirements
Correct Answer
B. Domain modeling is open-ended and is a never-ending analysis taskExplanation
Domain modeling is open-ended and is a never-ending analysis task. This means that domain analysis requires continuous effort and resources, as it involves understanding and capturing the complexities and intricacies of the domain. It is an ongoing process that requires constant updates and adjustments as the domain evolves over time. Therefore, avoiding domain analysis can be justified by the fact that it is a never-ending task, which may not be practical or feasible for certain projects or organizations.Rate this question:
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- 5.
Every project should document its architecture
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
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 factors such as the complexity of the project, the size of the team, and the need for future maintenance or collaboration. Some smaller or simpler projects may not require extensive documentation of their architecture, whereas larger or more complex projects may greatly benefit from documenting their architecture to ensure clarity and facilitate communication among team members.Rate this question:
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- 6.
Architecture documents are abstrations of the system
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Architecture documents are created to provide a high-level overview and understanding of a system's design and structure. They serve as abstractions by capturing the key components, interactions, and relationships within the system, without going into detailed implementation or specific technicalities. These documents help stakeholders, developers, and other team members to visualize and communicate the system's architecture effectively. Therefore, the statement "Architecture documents are abstractions of the system" is true.Rate this question:
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- 7.
A good set of architectural documents will completely describe the system
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
A good set of architectural documents will not completely describe the system. While architectural documents provide valuable information about the system's design and structure, they do not capture every detail and aspect of the system. Architectural documents typically focus on high-level concepts, components, and interactions, but they may not cover all the implementation details, specific functionalities, or non-functional requirements of the system. Therefore, it is incorrect to say that architectural documents will completely describe the system.Rate this question:
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- 8.
All design decisions should be made before coding begins
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Design decisions should not necessarily be made before coding begins. In some cases, it may be beneficial to start coding and then make design decisions as the coding process progresses. This approach allows for flexibility and adaptability, as the development team can learn from the coding process and make informed design decisions based on the actual implementation. Additionally, iterative or agile development methodologies often prioritize coding and feedback over upfront design, as they value continuous improvement and collaboration. Therefore, the statement that all design decisions should be made before coding begins is false.Rate this question:
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- 9.
Different types of models are required in order to serve the needs of various stakeholders
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement suggests that different types of models are required to meet the needs of various stakeholders. However, this statement is false. While it is true that different stakeholders may have different needs, it is not necessary to have different types of models to serve them. A well-designed model can incorporate the requirements of multiple stakeholders and cater to their needs effectively. Therefore, the statement is incorrect.Rate this question:
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- 10.
UML has many great features but it’s use describing domain models should be restricted because
- A.
It takes too long to create the diagrams
- B.
Good UML tools are too expensive
- C.
It is not a language known by most non-developers
- D.
It’s use is incompatible with the goals of domain modeling
- E.
The diagrams require you to include too much detail
Correct Answer
C. It is not a language known by most non-developersExplanation
UML should be restricted in describing domain models because it is not a language known by most non-developers. This means that stakeholders and domain experts who are not familiar with UML may have difficulty understanding and interpreting the diagrams. In order to effectively communicate and collaborate with these individuals, it would be more beneficial to use a more accessible and widely understood language or tool.Rate this question:
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- 11.
OCL(Object Constraint Language)
- A.
Can be used to model the structure of a system
- B.
Is similar to natural language in its support for modeling systems
- C.
Can be used to model the relationships in the domain
- D.
Is a language that is understood by most non-technical people
- E.
Is good for describing invariants in a model
Correct Answer
E. Is good for describing invariants in a modelExplanation
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 within a system. OCL provides a way to express these invariants in a precise and formal manner. By using OCL, developers can define constraints and rules that need to be satisfied by the objects in a system, ensuring the integrity and consistency of the model. This makes OCL a valuable tool for specifying and enforcing the desired behavior of a system.Rate this question:
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- 12.
When modeling the domain we model its
- A.
Structure
- B.
Behavior
- C.
The way people will use the system
- D.
Both a and b
- E.
Both a and c
Correct Answer
D. Both a and bExplanation
When modeling the domain, it is important 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 actions and interactions of these components. By considering both aspects, we can create a comprehensive model that accurately represents the domain. Additionally, it is also important to consider the way people will use the system, as this can influence the design and functionality of the model. Therefore, the correct answer is both a and b.Rate this question:
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- 13.
Which of the following statements is the most correct?
- A.
A deployment view shows where process will run and how they will interact
- B.
A deployment view shows how the system interacts with its environment
- C.
A deployment view shows how the system is installed in the target environment
- D.
Both a and b
- E.
Both a and c
Correct Answer
A. A deployment view shows where process will run and how they will interactExplanation
A deployment view shows where processes will run and how they will interact. This means that it provides a visual representation of the physical infrastructure on which the system will be deployed, including the hardware and network components. It also shows how the processes within the system will be distributed across these components and how they will communicate with each other. This view helps in understanding the deployment architecture and ensures that the system is properly installed and configured in the target environment.Rate this question:
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- 14.
Which of the following statements is the most correct?
- A.
Components describe units of code
- B.
Connectors are pathways of runtime interaction
- C.
A module is associated with exactly one component
- D.
Design decisions are clearly identifiable in views
- E.
Views always describe subsystem
Correct Answer
A. Components describe units of codeExplanation
This statement is the most correct because components are indeed units of code. In software engineering, a component is a modular, reusable, and independent unit of code that performs a specific function. Components are designed to be self-contained and can be easily integrated into larger systems. They encapsulate the implementation details and provide a well-defined interface for other components to interact with. Therefore, it is accurate to say that components describe units of code.Rate this question:
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- 15.
Which of the following is true of a Context Diagram
- A.
Describe how the software being created interacts with elements in its environment
- B.
Can be based on a use case diagram
- C.
Might show the Internet
- D.
Describe what is in and what is outside the scope of the software project
- E.
All of a-d
- F.
Only a and d
Correct Answer
E. All of a-dExplanation
A Context Diagram is a visual representation that describes how the software being created interacts with elements in its environment. It shows the external entities that interact with the system and the flow of data between them. It can be based on a use case diagram, which depicts the interactions between actors and the system. It might also show the Internet as one of the external entities. Additionally, a Context Diagram helps to define the scope of the software project by clearly illustrating what is included (inside the system boundary) and what is outside the scope (outside the system boundary). Therefore, all of the options a-d are true statements about a Context Diagram.Rate this question:
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- 16.
Three standard view types for the Design Model are
- A.
Component and Connector,Designation and Module
- B.
Runtime,Documentation and Miscellaneous
- C.
Component,Module,Deployment
- D.
Component,Allocation,Module
- E.
Runtime,Allocation,Module
Correct Answer
E. Runtime,Allocation,ModuleExplanation
The correct answer is Runtime, Allocation, Module. These three view types are commonly used in the Design Model. The Runtime view focuses on the dynamic behavior of the system, showing how components interact at runtime. The Allocation view shows how software components are allocated to hardware resources. The Module view focuses on the structure of the system, showing the organization of components and their relationships.Rate this question:
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- 17.
Which of the following is not true about the Apach server?
- A.
Built in the pipe and filter style
- B.
Is designed to allow new Code to be inserted easily
- C.
Was designed with few constraints to support the system’s performance goals
- D.
A web server
- E.
Was designed around the goal of modifiability
Correct Answer
C. Was designed with few constraints to support the system’s performance goalsExplanation
The given answer suggests that the statement "Was designed with few constraints to support the system’s performance goals" is not true about the Apache server. This means that the Apache server was not designed with few constraints to support its performance goals.Rate this question:
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- 18.
A context diagram should include details related to quality concerns
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A context diagram should include details related to quality concerns because it provides an overview of the system and its interactions with external entities. Quality concerns are important to consider in the context diagram as they help identify potential risks and requirements related to the quality of the system. By including these details, the diagram can provide a holistic view of the system's context and facilitate discussions and decision-making regarding quality aspects.Rate this question:
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- 19.
A port is a point of interaction in a component diagram
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
In a component diagram, a port represents a point of interaction between a component and its environment. It is used to specify the services that a component provides or requires. By connecting components through ports, the diagram shows how they communicate and interact with each other. Therefore, the statement "A port is a point of interaction in a component diagram" is true.Rate this question:
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- 20.
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. TrueExplanation
A context diagram is a visual representation of a system that shows how it interacts with external entities. It provides a high-level view of the system's boundaries and the relationships between the system and its environment. Like a snapshot, a context diagram captures a specific moment or state of the system. However, as the system runs and evolves, the context may change due to various factors such as user interactions, system updates, or external influences. Therefore, it is true that the context is likely to change as the system runs.Rate this question:
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- 21.
A master model is the one used by the architect to include information from all three viewtypes
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The explanation for the given correct answer is that a master model is not used by the architect to include information from all three viewtypes. A master model is a central model that contains all the necessary information for a specific aspect of a project, such as structural or mechanical systems. It is not specifically used to include information from all three viewtypes, which typically refer to plan, elevation, and section views. Therefore, the correct answer is false.Rate this question:
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- 22.
A view is a projection of a model that reveals select details
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A view is a representation or visualization of a model that allows us to see specific details or aspects of it. It helps us focus on certain elements or information while excluding others. Therefore, it is true that a view is a projection of a model that reveals select details.Rate this question:
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- 23.
An internals model can be used to identify boundary models of others
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
An internals model refers to an individual's perception and understanding of their own mental processes and cognitive abilities. It allows them to have a sense of self-awareness and introspection. In the context of identifying boundary models of others, an internals model can be used to gain insight into how others perceive and understand their own mental processes and cognitive abilities. This understanding helps in recognizing the limitations and boundaries of others' thinking and decision-making processes, thereby facilitating effective communication and collaboration. Hence, the statement "An internals model can be used to identify boundary models of others" is true.Rate this question:
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- 24.
Which of the following DOES NOT describe risk in software development
- A.
Something to worry about
- B.
A cause of failure
- C.
A chance of failure
- D.
A primary driver of architecture
Correct Answer
B. A cause of failureExplanation
This answer is correct because it states that risk in software development is not a cause of failure. Risk refers to the possibility of something going wrong or not achieving the desired outcome. While risk can certainly contribute to failure, it is not the sole cause. Failure in software development can result from various factors such as inadequate planning, poor communication, technical issues, or external factors. Therefore, risk is not the exclusive cause of failure in software development.Rate this question:
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- 25.
Which of the following clearly describes the scope of a software project
- A.
An internals diagram
- B.
A context diagram
- C.
A sequence diagram
- D.
A functionality scenario
Correct Answer
B. A context diagramExplanation
A context diagram clearly describes the scope of a software project by illustrating the boundaries of the system and its interactions with external entities. It provides an overview of the system's inputs, outputs, and external interfaces, allowing stakeholders to understand the context in which the software will operate. This diagram helps to identify the system's boundaries and the key actors involved, ensuring that everyone has a shared understanding of the project's scope and context.Rate this question:
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- 26.
Three styles of design are
- A.
Risky,safe,uncertain
- B.
Planned,evolutionary and minimal planned
- C.
Spiral,waterfall,agile
- D.
Risk-based,architectural,Code-based
Correct Answer
B. Planned,evolutionary and minimal plannedExplanation
The correct answer is "planned, evolutionary, and minimal planned". This answer is based on the given options for the three styles of design. The other options do not match the given options and are therefore incorrect.Rate this question:
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- 27.
A use-case is
- A.
A decision not to modify the system
- B.
A process that will run as part of the system
- C.
An argument that drivers system design
- D.
A goal for actors the system interacts with
- E.
A diagram that shows what the system does
Correct Answer
D. A goal for actors the system interacts withExplanation
A use-case is a goal for actors the system interacts with. Use-cases describe the specific goals or tasks that actors (users or external systems) want to achieve when interacting with the system. They define the desired outcome or purpose of the interaction, helping to identify and prioritize system requirements and functionality. Use-cases provide a clear understanding of the system's purpose and help guide the design and development process. They are typically represented in a use-case diagram, which visually depicts the actors, use-cases, and their relationships.Rate this question:
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- 28.
The risk-driven approach is most difficult to apply to the __________ software development process
- A.
Waterfall
- B.
Interative
- C.
RUP
- D.
XP
Correct Answer
D. XPExplanation
The risk-driven approach is most difficult to apply to the XP (Extreme Programming) software development process. This is because XP follows an agile methodology that emphasizes continuous feedback, frequent iterations, and adaptability. The risk-driven approach, on the other hand, involves identifying and managing risks throughout the software development lifecycle, which may not align well with the fast-paced and flexible nature of XP. In XP, the focus is on delivering value quickly and responding to change, rather than extensive upfront planning and risk management.Rate this question:
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- 29.
A specific architectural style is chosen for a project because
- A.
The architect has the most familiarity with it
- B.
The developers who will implement the system are most familiar with it
- C.
It is known to ensure quality attributes of concern
- D.
It will make the system easier to maintain
- E.
None of the above
Correct Answer
C. It is known to ensure quality attributes of concernExplanation
The specific architectural style is chosen for a project because it is known to ensure quality attributes of concern. This means that the chosen architectural style has a proven track record of meeting the specific quality requirements and goals of the project. By selecting an architectural style that is known to ensure quality attributes, the project team can have confidence that the system will meet the desired performance, reliability, security, and other important attributes. This decision is not based on the familiarity of the architect or developers, or the ease of maintenance, but rather on the ability of the chosen architectural style to deliver the desired quality attributes.Rate this question:
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- 30.
__________ are approaches to decomposing a system
- A.
Functionality,Archetypes,Jigsaw Puzzle
- B.
Functionality,Architectural design,Orthogonal abstraction
- C.
Dominant Component, Attribute Driven Design,Ports
- D.
Architectural Style,Ports,Archetypes
- E.
Both a and d
- F.
Both c and d
Correct Answer
E. Both a and dExplanation
Both options a and d are correct because they both include approaches to decomposing a system. Option a includes functionality, archetypes, and jigsaw puzzle as approaches to decomposing a system. Option d includes architectural style, ports, and archetypes as approaches to decomposing a system.Rate this question:
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- 31.
Which of the following statements is the most correct?
- A.
A sequence diagram is used to models sequence of activities associated with a use case
- B.
A sequence diagram is used to model a sequence of message exchanged among objects
- C.
A sequence diagram is used to model a sequence of transitions among objects in a use case
- D.
Both a and b
- E.
Both a and c
Correct Answer
B. A sequence diagram is used to model a sequence of message exchanged among objectsExplanation
A sequence diagram is used to model a sequence of message exchanged among objects. This diagram represents the interactions between objects in a system, illustrating the order in which messages are sent and received. It helps to visualize the flow of communication between objects and understand the behavior of the system during runtime.Rate this question:
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- 32.
Which of the following statements is the most correct?
- A.
United Models for Languages
- B.
Universal Modeling Language
- C.
Unified Modeling Language
- D.
United Modeling Language
Correct Answer
C. Unified Modeling LanguageExplanation
Unified Modeling Language (UML) is the most correct statement among the given options. UML is a standardized modeling language used in software engineering to visually represent and document software systems. It provides a set of graphical notations that enable developers to communicate and understand the structure, behavior, and interactions of the system. The other options, United Models for Languages, Universal Modeling Language, and United Modeling Language, are not recognized or widely used terms in the field of software engineering.Rate this question:
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- 33.
Which of the following is best describes UML
- A.
UML is a combination of notations.
- B.
UML supports modeling multiple views of software
- C.
UML has evolved over time
- D.
UML was created by the OMG
- E.
All of a-d
- F.
Only a and d
Correct Answer
E. All of a-dExplanation
UML, or Unified Modeling Language, is best described by all of the options given. UML is a combination of notations, meaning it uses various symbols and diagrams to represent different aspects of a software system. UML also supports modeling multiple views of software, allowing different perspectives to be represented. UML has indeed evolved over time, with new versions and updates being released to improve its capabilities. Lastly, UML was created by the OMG, or Object Management Group, as a standardized language for software modeling. Therefore, all options accurately describe UML.Rate this question:
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- 34.
Three notations of UML are
- A.
Activity diagrams, Component diagrams, Construction diagrams
- B.
Component diagrams, Action diagrams, Sequence diagrams
- C.
Class diagrams, ER diagrams, Action diagrams
- D.
Canonical diagrams, Activity diagrams, Sequence diagrams
- E.
Class diagrams, Sequence diagrams, Use Case diagrams
Correct Answer
E. Class diagrams, Sequence diagrams, Use Case diagramsExplanation
The correct answer is Class diagrams, Sequence diagrams, Use Case diagrams. UML (Unified Modeling Language) is a standardized visual language used for modeling software systems. Class diagrams are used to represent the structure and relationships of classes in a system. Sequence diagrams depict the interactions between objects in a particular scenario or use case. Use Case diagrams illustrate the functionality of a system from the perspective of its users. These three types of diagrams are commonly used in UML to provide a comprehensive view of a software system.Rate this question:
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- 35.
Which of the following statements is the most correct?
- A.
A component diagram shows a configuration of the system at a given moment.
- B.
A component diagram shows all potential interactions among components in a view.
- C.
A component diagram can show instances of classes
- D.
Both a and b
- E.
Both b and c
Correct Answer
E. Both b and cExplanation
A component diagram shows all potential interactions among components in a view and can also show instances of classes. This means that the diagram not only represents the relationships and interactions between components but also includes the actual instances of classes that are part of the system. Therefore, the correct answer is that both statement b and c are the most correct.Rate this question:
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- 36.
Which of the following statements is the most correct?
- A.
Ports are represented using dots on a component border.
- 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 c) Assembly connectors show the relationship between ports on the component’s boundary and its internals.
- D.
Lollipop symbol is used to represent provides interfaces.
- E.
Socket symbol is used to represent provides interfaces.
Correct Answer
E. Socket symbol is used to represent provides interfaces. -
- 37.
Which of the following is/are not well supported by the component diagram notation? ___________.
- A.
Component Internals
- B.
Potential interactions with external components
- C.
Complex components
- D.
Complex connectors
Correct Answer
D. Complex connectorsExplanation
The component diagram notation does not provide strong support for representing complex connectors. This means that it may not be easy or clear to represent intricate or complicated connections between components using the standard component diagram notation. While the notation is generally effective for representing component internals, potential interactions with external components, and complex components, it may fall short in accurately depicting complex connectors.Rate this question:
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- 38.
The primary difference between component diagrams and sequence diagrams is
- 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.
There is very little difference, they are just two different ways of viewing component interactions.
- 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.
Component diagrams represent the code whereas sequence diagrams represent behavior.
Correct Answer
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 representing interactions among components. Component diagrams provide an overview of all potential interactions among a group of components, showcasing the relationships and dependencies between them. On the other hand, sequence diagrams focus on illustrating the specific interactions that occur in response to a particular type of request, capturing the sequence of messages exchanged between the components involved. While both diagrams are valuable in understanding component interactions, their scope and level of detail differ, making them distinct ways of visualizing component behavior.Rate this question:
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- 39.
UML provides special notation for a subsystem element because
- A.
Subsystem elements have critical differences from components, which must be represented.
- B.
Subsystem elements and component elements are not substantially different so there is no need for them.
- C.
Component elements have important aspects that are not representable using the provided subsystem element notation.
- D.
Both a and c
- E.
None of the above
Correct Answer
B. Subsystem elements and component elements are not substantially different so there is no need for them.Explanation
The correct answer is that subsystem elements and component elements are not substantially different so there is no need for special notation for subsystem elements. This means that both subsystem elements and component elements can be represented using the same notation in UML, as they do not have critical differences that require separate representation. Therefore, there is no need for a special notation for subsystem elements.Rate this question:
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- 40.
Component details in UML can be shown as text within a compartment of a component
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
In UML, component details can be displayed as text within a compartment of a component. This allows for a clear and organized representation of the component's attributes, operations, and other details. By showing the component details within a compartment, it becomes easier to understand and communicate the structure and behavior of the component in a visual manner.Rate this question:
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- 41.
Which of the following statements is the most correct? ____________ .
- A.
A class diagram shows a configuration of the system at a given moment.
- B.
A class diagram shows all potential interactions among components in a view.
- C.
A class diagram can show relationships between java interfaces and other classes.
- D.
Both a and b.
- E.
Both b and c
Correct Answer
C. A class diagram can show relationships between java interfaces and other classes. -
- 42.
Which of the following statements is the most correct? _________.
- A.
A class diagram for a module always has three components.
- B.
A class diagram shows relationships among code units.
- C.
A class diagram supports analyzing behavior of complex protocols.
- D.
Lollipop symbol is used to represent provides interfaces.
- E.
Socket symbol is used to represent provides interfaces.
- F.
Class and components diagrams are always very similar.
Correct Answer
C. A class diagram supports analyzing behavior of complex protocols. -
- 43.
Which of the following is(are) NOT well supported by the class diagram notation? ___________.
- A.
Identifying public and private members of a class.
- B.
Identifying which classes depend on other classes.
- C.
Discussing how the system will behave.
- D.
Discussing how to add newly required functionality to the system.
- E.
Both a and d
Correct Answer
C. Discussing how the system will behave.Explanation
The class diagram notation in software engineering is primarily used to depict the structure of a system, including the classes, their attributes, and relationships. It is not specifically designed to represent the behavior of the system. Therefore, discussing how the system will behave is not well supported by the class diagram notation.Rate this question:
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- 44.
Which of the following is/are NOT a benefit of including class diagrams in project documentation? _______
- A.
Help programmers understand the context of the code they are creating.
- B.
Help the project sponsors understand how the system will work.
- C.
Help the project manager identify responsible people for each of the coding tasks.
- D.
Help maintainers identify the source of bugs.
- E.
All of the above.
- F.
Each of a, b, and c.
- G.
Each of a, c, and d.
- H.
Each of b, c, and d.
Correct Answer
B. Help the project sponsors understand how the system will work.Explanation
Including class diagrams in project documentation helps programmers understand the context of the code they are creating, helps the project manager identify responsible people for each coding task, and helps maintainers identify the source of bugs. However, it does not directly help the project sponsors understand how the system will work.Rate this question:
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- 45.
Class diagrams can be generated directly from code.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Class diagrams can be generated directly from code because modern programming languages and development tools provide features and plugins that allow automatic generation of class diagrams based on the code structure. These tools analyze the code and extract information about classes, their relationships, and properties, and then generate a visual representation of the classes and their connections. This helps developers to visualize the structure of their code and understand the relationships between different classes, making it easier to design, refactor, and maintain the codebase.Rate this question:
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- 46.
The process of creating class diagrams is a valuable activity during design
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Creating class diagrams is a valuable activity during design because it helps in visualizing the structure and relationships of classes in a system. Class diagrams provide a blueprint for the system's architecture, allowing designers to identify classes, their attributes, and methods, as well as the associations and dependencies between them. This helps in understanding the overall design, identifying potential design flaws, and facilitating communication among team members. Class diagrams also serve as a foundation for generating code and implementing the system.Rate this question:
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- 47.
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. FalseExplanation
Not all class diagrams created during the design of a system need to be maintained as part of the project documentation. While class diagrams can be useful for understanding the structure and relationships of classes in a system, it is not always necessary to include them in the project documentation. The decision of whether or not to include class diagrams in the documentation depends on the specific requirements and preferences of the project.Rate this question:
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- 48.
A design pattern ______ .
- A.
Contains a description of other related patterns.
- B.
Can be useful describing how a software problem was solved by a developer.
- C.
Is a general reusable solution to a commonly occurring problem within a given context in software design.
- D.
Gives examples of code that used the pattern.
- E.
Both a and c
- F.
All of a-d
Correct Answer
F. All of a-dExplanation
A design pattern is a general reusable solution to a commonly occurring problem within a given context in software design. It can be useful in describing how a software problem was solved by a developer. Additionally, a design pattern may contain a description of other related patterns and provide examples of code that used the pattern. Therefore, the correct answer is "All of a-d".Rate this question:
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- 49.
The Dependency Inversion Principle ______.
- A.
Helps ensure that objects are highly reusable.
- B.
Requires that methods that are present in base classes must also be present in the derived classes.
- C.
Helps ensure that objects are easy to extend without requiring change to the original object.
- D.
Requires that object interfaces only include methods that will be needed by most implementers.
- E.
Helps make changing an object easier.
Correct Answer
A. Helps ensure that objects are highly reusable.Explanation
The Dependency Inversion Principle helps ensure that objects are highly reusable by promoting loose coupling between classes. It suggests that high-level modules should not depend on low-level modules directly, but both should depend on abstractions. This allows for flexibility and easy substitution of implementations, making objects more reusable and adaptable to different scenarios. By depending on abstractions, the code becomes more modular and less tightly coupled, which enhances reusability and maintainability.Rate this question:
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- 50.
The Open-Close Principle _________.
- A.
Helps ensure that objects are highly reusable.
- B.
Requires that methods that are present in base classes must also be present in the derived classes.
- C.
Helps ensure that objects are easy to extend without requiring change to the original object.
- D.
Requires that object interfaces only include methods that will be needed by most implementers.
- E.
Helps make changing an object easier.
Correct Answer
C. Helps ensure that objects are easy to extend without requiring change to the original object.Explanation
The Open-Close Principle states that software entities (classes, modules, functions, etc.) should be open for extension but closed for modification. This means that the behavior of an object can be extended without modifying its source code. By adhering to this principle, objects can be easily extended to incorporate new features or behaviors without the need to modify the existing code, thus ensuring that objects are easy to extend without requiring change to the original object.Rate this question:
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