iSQI Updated CPSA-FL Exam Questions and Answers by reeva

The aspects that are more of a domain-related nature and those that are more of a technical nature are as follows:

• More technical:
• More domain-related:

In software architecture, aspects can be categorized based on their relevance to the domain (the problem space) or the technology (the solution space). Here’s an explanation of each:

• More Technical:
• More Domain-Related:

These distinctions are important for architects to consider when making design decisions, ensuring that both technical and domain-related aspects are adequately addressed.

References:

• Rozanski, N., & Woods, E. (2011). Software Systems Architecture: Working With Stakeholders Using Viewpoints and Perspectives. Addison-Wesley Professional.
• Fowler, M. (2002). Patterns of Enterprise Application Architecture. Addison-Wesley.

The performance of a system often competes with its:

• Flexibility (A) - True1
• Memory usage (B) - True1
• On-time completion of the project C - False
• Adaptability (D) - True1
• Usability (E) - True1
• Security (F) - True1
• Testability (G) - True

In system design, performance trade-offs are a critical consideration. Here’s an explanation of how each listed aspect competes with system performance:

• Flexibility (A): Systems designed for high performance may be less flexible because they are optimized for specific tasks or conditions1.
• Memory Usage (B): High-performance systems may require more memory to store data and instructions for rapid access, which can be at odds with limited memory resources1.
• On-time Completion of the Project ©: While performance considerations can impact project timelines, they do not inherently compete with the on-time completion of a project.
• Adaptability (D): Systems that need to perform well under varying conditions may sacrifice adaptability, as they are tightly coupled with their performance optimizations1.
• Usability (E): Sometimes, the pursuit of performance can lead to complex user interfaces or workflows, affecting usability negatively1.
• Security (F): Security measures can introduce additional processing and checks, potentially slowing down system performance1.
• Testability (G): High-performance systems may be harder to test due to their complexity and the need for specialized testing environments or tools1.

These trade-offs highlight the importance of balancing different system attributes to meet the overall goals and constraints of a project.

References:

• CodingDrills article on Trade-Offs in System Design1

A) CorrectB) IncorrectC) CorrectD) CorrectE) IncorrectF) Incorrect

The concept of coupling between building blocks is crucial in software architecture, and the iSAQB® SOFTWARE ARCHITECTURE – FOUNDATION LEVEL provides guidance on this topic. Here’s an analysis of the statements based on the curriculum:

A) A high degree of coupling of a building block reduces its reusability: This is correct. High coupling means that a building block is heavily dependent on other components, which can limit its ability to be reused in different contexts1.

B) Low coupling of a building block improves the ability to meet functional requirements: This statement is incorrect. While low coupling can contribute to a more maintainable and flexible architecture, it does not directly improve the ability to meet functional requirements1.

C) Low cohesion often leads to high coupling: This is correct. Cohesion refers to how closely related the responsibilities of a module are. Low cohesion can result in modules that perform a wide range of actions, which often leads to higher coupling with many other modules1.

D) Loose coupling often leads to less effort for making changes: This is correct. Loose coupling allows for easier modification of a system with minimal impact on other components, thus reducing the effort required for changes1.

E) For call dependencies, the degree of coupling is independent of the direction of the call: This statement is incorrect. The degree of coupling can be affected by the direction of the call, as it determines which module controls the interaction1.

F) In object-oriented programming languages, inheritance reduces coupling: This statement is incorrect. Inheritance can actually increase coupling because it creates a direct dependency between the superclass and the subclass1.

These insights are aligned with the principles outlined in the iSAQB® SOFTWARE ARCHITECTURE – FOUNDATION LEVEL curriculum, which emphasizes the importance of understanding and managing coupling for effective software architecture design1.

A) BeneficialB) BeneficialC) Not BeneficialD) Not BeneficialE) Beneficial

In the context of documenting the software architecture for a large development project with multiple teams, the following measures can be considered beneficial:

A) Dividing the whole architecture documentation into sub-documents for each of the three sub-projects can be beneficial as it allows each team to focus on their specific area while maintaining a modular approach to documentation1.

B) Predefining the structure of the entire architecture documentation ensures consistency and coherence across all sub-projects. It helps in maintaining a uniform standard and facilitates easier integration of the sub-documents into the overall project documentation1.

C) Leaving the decision regarding the documentation structure to the team that first begins the documentation of its sub-project is not beneficial. This approach can lead to inconsistencies and may result in a lack of uniformity across the project’s documentation1.

D) Rejecting word processing for the documentation because it is not connected with the source code is not beneficial. While it is important to link documentation with the source code, word processing tools can still be used effectively for creating comprehensive documentation. Tools like version control can be used to maintain a connection between the documentation and the source code1.

E) Having developers document their parts of the architecture documentation using source code can be beneficial. This approach ensures that the documentation is close to the implementation and can be more easily kept up-to-date1.

These measures align with the best practices for software architecture documentation as per the iSAQB® SOFTWARE ARCHITECTURE – FOUNDATION LEVEL documents, which emphasize the importance of clear, consistent, and coherent documentation in software architecture1.