Pass the iSQI CPSA-F CPSA-FL Questions and answers with CertsForce

When designing external interfaces, several considerations must be taken into account:A. Volatility of neighbouring systems - Changes in neighboring systems can affect the stability and compatibility of interfaces, requiring interfaces to be adaptable to changes.C. Protocols enforced by neighbouring systems - It's crucial to align with the protocols used by neighboring systems to ensure seamless communication and interoperability.D. Expected amount of parallel calls - This affects the scalability and performance requirements of the interface, as it must be designed to handle the expected load efficiently.

A) Not AppropriateB) AppropriateC) Not Appropriate

For a project involving multiple architects and developers, achieving consistent and adequate documentation is crucial. Here’s how the methods listed would fare:

A) The chief architect creates the documentation: This method is not appropriate because it places the entire burden of documentation on a single individual, which can lead to bottlenecks and may not accurately reflect the contributions and insights of the entire team1.

B) Identical templates are used for the documentation: This is an appropriate method as it ensures consistency across the documentation produced by different team members. Using identical templates helps maintain a uniform structure and style, which is beneficial for readability and maintenance1.

C) All parts of the architecture documentation are automatically extracted from the source code: Relying solely on automatic extraction is not appropriate because it may not capture all the necessary details and decisions made during the architectural design process. Manual documentation is also important to provide context and rationale that cannot be automatically generated1.

These methods are in line with the iSAQB® SOFTWARE ARCHITECTURE – FOUNDATION LEVEL, which emphasizes the importance of clear, consistent, and comprehensive documentation practices1.

The white-box view of a software building block provides an in-depth perspective on the internal structure and behavior of the building block.

A: The dependencies of the internal building blocks of 'foo' are crucial for understanding how changes in one part affect others and for managing future modifications.

C: The algorithms of the internal building blocks of 'foo' give insight into the logic and operations performed within the block, which is essential for performance analysis and optimization.

D: The internal building blocks of 'foo' describe the finer-grained components or modules within 'foo', detailing their responsibilities and interactions, fundamental for detailed design and implementation.

As an architect, you can specify the following characteristics of a black-box building block:

Compliance with functional requirements (A)

Compliance with non-functional requirements (B)

Purpose and/or responsibility (D)

Method signature of public interfaces (E)

Data formats of public interfaces (F)

In software architecture, a black-box building block is a component whose internal structure is not exposed to or understood by other components. It is defined only by its provided functionality and the services it offers. Here’s a detailed explanation of each characteristic:

Compliance with Functional Requirements (A): This refers to the ability of the building block to perform the functions it was designed to do, which are often captured in a functional specification document.

Compliance with Non-functional Requirements (B): These are criteria that can be used to judge the operation of a system, rather than specific behaviors. This includes requirements related to scalability, performance, security, and reliability.

Purpose and/or Responsibility (D): This defines the role the building block plays in the overall system architecture, including its responsibilities and the services it provides.

Method Signature of Public Interfaces (E): The method signature defines the interface that other components can use to interact with the building block. It includes the method name, parameters, and return type.

Data Formats of Public Interfaces (F): This specifies the format and structure of the data that is accepted or returned by the building block’s public interfaces.

These characteristics are essential for ensuring that the building block can be effectively integrated into a larger system and interact with other components as expected.

References:

Bass, L., Clements, P., & Kazman, R. (2012). Software Architecture in Practice (3rd ed.). Addison-Wesley Professional.

Martin, R. C. (2003). Agile Software Development: Principles, Patterns, and Practices. Prentice Hall.

Fowler, M. (2002). Patterns of Enterprise Application Architecture. Addison-Wesley.

A) FalseB) FalseC) TrueD) TrueE) TrueF) True

A) Agile approaches make written documentation unnecessary. In such cases, verbal communication can substitute for documentation.

False. Even in agile approaches, written documentation is important for maintaining a clear and consistent understanding of the architecture among team members and stakeholders1.

B) Written documentation makes verbal reiteration unnecessary.

False. Verbal communication is essential for clarifying and reinforcing the content of written documentation, especially when addressing complex or nuanced architectural issues2.

C) Despite written documentation, verbal communication of architectural interrelationships is important.

True. Verbal communication plays a crucial role in explaining the rationale behind architectural decisions and interrelationships that may not be fully captured in documentation2.

D) Documentation and communication should use identical terms and rationale.

True. Consistency in terminology and rationale between documentation and verbal communication helps prevent misunderstandings and ensures that all parties have a common understanding of the architecture2.

E) Documentation should be created primarily for project participants who either cannot or do not want to read the system’s source code.

True. Documentation serves as a guide for those who may not be directly involved in coding but need to understand the architecture, such as managers, new team members, or external stakeholders2.

F) Communication and documentation complement each other: verbal communication helps architects determine what must be recorded in writing.

True. Verbal communication often reveals what aspects of the architecture are most important or confusing to team members, guiding what should be emphasized in written documentation

A) IncorrectB) CorrectC) IncorrectD) IncorrectE) Incorrect

In the context of building a tool chain for continuous architecture evaluation and analysis, the following statements can be assessed:

A) Tools for static code analysis do not find all dependencies in the source code. They can find many, but not necessarily all, especially if dynamic programming techniques are used1.

B) Several tools for static code analysis can be used to verify compliance with architectural rules. This is one of the primary uses of static code analysis tools1.

C) Tools for static code analysis cannot reliably measure cohesion because cohesion is a qualitative aspect of modules that depends on the context and design intent, which static analysis alone cannot fully capture1.

D) Tools for static code analysis are not typically used to optimize runtime efficiency. They are more focused on code quality, security, and compliance with coding standards1.

E) Tools for dynamic analysis, such as profilers, can be used to optimize static structures. They provide runtime information that can inform decisions about the static structure of the code1.

These assessments are based on the iSAQB® SOFTWARE ARCHITECTURE – FOUNDATION LEVEL documents, which provide guidelines on the selection and use of tools for software architecture evaluation and analysis1.

The layered architectural pattern, also known as n-tier architecture, is a common framework in software development that organizes a system into distinct layers with specific roles and responsibilities. The primary advantage of this pattern is its Separation of Concerns (SoC), which means each layer is independent and can be understood without the others2. This separation enhances flexibility because changes in one layer can be made with minimal impact on others, allowing for easier maintenance and scalability12.

While creating high-performance systems (B) and being able to use application servers © are also considerations in system architecture, they are not the main benefits attributed to the layered pattern. The layered architecture is more about managing complexity and promoting modularity rather than directly enhancing performance or dictating the use of specific technologies like application servers34.

References:

Baeldung on Computer Science article on Layered Architecture1.

O’Reilly’s Software Architect’s Handbook on Advantages of Layered Architectures2.

Bitloops documentation on Layered Architecture3.

Developn article on Software Architecture Patterns

The correct statements about design patterns are:A. Design patterns are not invented but discovered. - Design patterns represent solutions to common design problems and are derived from repeated experiences and observations in software development rather than being invented.B. Design patterns should always be described alongside the problem they are supposed to solve. - A fundamental aspect of using design patterns is understanding the specific problem a pattern addresses, which helps in applying the pattern effectively in relevant scenarios.

References:

Known patterns for the adaptation of interfaces include:A. Bridge - This design pattern is used to separate abstraction from its implementation so that both can be modified independently without affecting each other.D. Façade - This pattern provides a simplified interface to a more complex subsystem, serving as a point of entry to a larger body of code, making it easier to use.

Quality requirements specify the conditions under which a system must operate to meet the needs of its users and stakeholders, focusing on performance, usability, reliability, etc.

C: Automatic spelling correction is a feature related to the system's usability and accuracy, improving the overall quality of user interaction.

D: Stating a failure rate of less than 0.1% specifies a reliability target that the system must achieve, making it a quantifiable and critical quality requirement.