Online Access Free CPSA-FL Exam Questions

Which of the following statements apply to design patterns? (Choose two.)

• A.Design patterns are not invented but discovered.
• B.Design patterns are formally defined and can thus be proven to be correct.
• C.Design patterns should always be described alongside the problem they are supposed to solve.
• D.The number of design patterns used is proportional to the software architecture's quality.

Decide if the following statements are true or false. The performance of a system (response time or throughput) often competes with its... (Assign all answers.)

Correct Answer:

Explanation:
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

Which elements should be defined in the white-box view of a software building block 'foo'? Select the three most important elements. (Choose three.).

• A.The rationale for the decomposition of the building block
• B.The algorithms of the internal building blocks of 'foo'
• C.The dependencies of the internal building blocks of 'foo'
• D.The internal building blocks of 'foo'
• E.The sizes (in lines of code) of the internal building blocks of 'foo'
• F.The legal contracts with the suppliers of the internal building blocks of 'foo'

Conway's law sometimes is referred to as "If you have four teams working on the compiler, you'll get a 4-pass compiler." Which interpretations of this law are true, which are false? (Assign all answers.)

Correct Answer:

Explanation:
The interpretations of Conway's law that are true and false are as follows:
* True:
* Structures of software architecture and associated organization are congruent (B).
* Software architecture is particularly important when creating compilers .
* False:
* You need four teams to build a compiler (A).
* Certain types of software are not suitable for the use of software architecture (D).
Conway's law suggests that the structure of systems designed by an organization will mimic the communication structures of that organization1. This means that the way teams are organized and communicate will influence the design of the software they are developing. Here's an explanation of each interpretation:
* True Statements:
* (B): The law implies that the technical structure of a system will reflect the social boundaries of the organization that produced it, which means the architecture of the software and the
* organization will be congruent1.
* : When creating complex systems like compilers, the architecture is influenced by organizational structures, making it crucial to consider how teams are organized and how they communicate1.
* False Statements:
* (A): The number of teams does not dictate the necessity of a multi-pass compiler; it's a metaphorical example to illustrate that organizational structure can influence technical design1.
* (D): All types of software can benefit from thoughtful software architecture; the statement is a misinterpretation of Conway's law, which does not deem any software unsuitable for architectural practices1.
Conway's law is a valuable consideration in software engineering, reminding us that organizational decisions can have a significant impact on the design and functionality of the software.
References:
* Wikipedia article on Conway's law1.
* ThinkingLabs article on Shades of Conway's Law2.
* Dovetail article on What Is Conway's Law

Which views should software architects document? Select the three most popular views.

• A.Interface view
• B.Non-functional view
• C.Stakeholder view
• D.Runtime view
• E.Deployment view
• F.Configuration view
• G.Link view
• H.Data view
• I.Building-block view