Online Access Free CPSA-FL Practice Test

Explanation:
A) FalseB) FalseC) FalseD) TrueE) TrueF) False
Postel's law, also known as the robustness principle, is a guideline in software engineering that advises to "be conservative in what you do, be liberal in what you accept from others"1. This principle has implications for system design and interaction with external interfaces:
A) Response time of the system is reduced: This is false. Postel's law does not directly relate to the response time of a system1.
B) Implementation effort increases: This is false. Being liberal in what is accepted can actually simplify implementation because the system is designed to handle a wider range of inputs without failure1.
C) Usability of the system is reduced: This is false. Postel's law aims to increase robustness and interoperability, which can enhance usability by making the system more resilient and accommodating1.
D) Robustness of the system is increased: This is true. By being conservative in outputs and liberal in inputs, the system becomes more robust, handling a variety of inputs without error1.
E) The integrity of the data transferred via interfaces is increased: This is true. Accepting a wide range of inputs and adhering strictly to output specifications helps maintain data integrity across different systems1.
F) Availability of the system is reduced due to potentially bad quality of input data: This is false. Postel's law suggests that the system should be designed to handle poor quality input data gracefully, thus maintaining availability1.
Applying Postel's law helps create systems that are more tolerant of input variations and strict in their outputs, contributing to overall system robustness and reliability1.

Explanation:
A) TrueB) TrueC) TrueD) TrueE) TrueF) TrueG) True
When choosing a software-architecture modeling tool, several factors can play a role:
A) Multi-user capability is important for collaborative environments where multiple architects work on the same model simultaneously1.
B) Support of UML 2.x and SysML ensures that the tool can handle widely-used modeling languages for software and systems engineering1.
C) Document generation is a key feature that allows for the automatic creation of documentation from the model1.
D) Support of model transformations in preparation of the code generation indicates the tool's ability to convert models into other forms or even into executable code1.
E) Support of code generation can significantly speed up the development process by generating code from the models1.
F) Compliance with standards ensures that the tool adheres to industry standards, which can be crucial for interoperability and future-proofing1.
G) Purchase and licensing costs are practical considerations that affect the total cost of ownership of the tool1.
These criteria are aligned with the iSAQB SOFTWARE ARCHITECTURE - FOUNDATION LEVEL documents, which emphasize the importance of these factors in the selection of a software-architecture modeling tool1.

Explanation:
A) TrueB) FalseC) TrueD) FalseE) True
The building-block view, as per the iSAQB SOFTWARE ARCHITECTURE - FOUNDATION LEVEL, typically includes the following information:
A) Which building blocks the software is composed of: This is true. The building-block view shows the composition of software building blocks1.
B) How the building blocks interact during run time: This is false. The interaction during runtime is typically shown in the runtime view, not the building-block view1.
C) How the building blocks are hierarchically decomposed: This is true. The building-block view includes hierarchical decomposition of the software building blocks1.
D) How the building blocks are distributed in a distributed system: This is false. The distribution of building blocks in a distributed system is part of the deployment view1.
E) The dependencies between the building blocks: This is true. The building-block view should show the dependencies between the different building blocks1.
These aspects are essential for understanding the structure and organization of the software architecture and are aligned with the iSAQB SOFTWARE ARCHITECTURE - FOUNDATION LEVEL documents1.

Explanation:
A) FalseB) TrueC) True
In a system with a multitude of class dependencies, the following measures can be considered:
A) The dependencies between classes are the responsibility of the developers. No measures are required within the architecture: This is false. While developers do manage day-to-day class dependencies, architectural measures are necessary to address systemic issues in a mature system1.
B) Loosening of direct dependencies between classes through the introduction of interfaces: This is true.
Introducing interfaces can decouple classes and allow for more flexible and maintainable code1.
C) Loosening of direct dependencies between classes through the introduction of factories: This is also true.
Factories can provide a way to create instances of classes without specifying the exact class, thus reducing dependencies1.
These measures align with the iSAQB SOFTWARE ARCHITECTURE - FOUNDATION LEVEL guidelines, which suggest that managing dependencies is crucial for maintaining and extending systems effectively1.

Explanation:

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