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質問 # 15
What role does understandability play for architecture documentation? (Choose three.)
- A. It is a quality characteristic together with scope and completeness.
- B. It is a quality characteristic together with correctness and efficiency.
- C. It is less important than completeness.
- D. It is desirable, but not essential.
- E. It is an important quality characteristic.
- F. It is a quality characteristic together with simplicity and brevity.
正解：A、E、F
解説：
Understandability in architecture documentation is crucial as it directly impacts the ease with which the architecture can be reviewed, maintained, and extended. Here's why the chosen answers are relevant:
* It is an important quality characteristic (C): Understandability ensures that the architecture is accessible not only to the creators but also to other stakeholders like new team members, management, and maintenance personnel. This aids in the effective communication of the architecture's intent, usage, and functionalities.
* It is a quality characteristic together with simplicity and brevity (E): Simplicity and brevity contribute to making complex systems easier to understand. Concise and straightforward documentation helps in quicker comprehension and reduces ambiguities.
* It is a quality characteristic together with scope and completeness (F): While it is important for the documentation to be comprehensive, it should also clearly define the scope of the system. This helps in setting the right expectations and ensures that the documentation covers all necessary aspects thoroughly, thus enhancing understandability.
References:
* "Documenting Software Architectures: Views and Beyond" by Paul Clements et al. emphasizes the importance of these aspects in effective architecture documentation.
* ISO/IEC 42010 also highlights understandability as a fundamental quality characteristic of architectural descriptions.
質問 # 16
Which characteristics of a building block are only visible in the whitebox view, and for which characteristics does the blackbox view suffice? (Assign all answers.)
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質問 # 17
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 sizes (in lines of code) of the internal building blocks of 'foo'
- B. The rationale for the decomposition of the building block
- C. The legal contracts with the suppliers of the internal building blocks of 'foo'
- D. The dependencies of the internal building blocks of 'foo'
- E. The internal building blocks of 'foo'
- F. The algorithms of the internal building blocks of 'foo'
正解：D、E、F
解説：
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.
質問 # 18
Which two of the following statements about quality characteristics are most accurate? (Choose two.)
- A. Increased efficiency results in reduced performance
- B. Simplicity increases comprehensibility
- C. Increased flexibility improves robustness
- D. Flexibility reduces testability
正解：B、C
質問 # 19
Which of the following statements are correct? P-Question. From the following 4 answers select 2 that fit best.
- A. A stack acts exactly like a queue
- B. The push operation usually places a new element onto a stack
- C. A stack usually only provides access to one element at a time
- D. A stack is organised according to the FIFO principle
正解：B、C
質問 # 20
In your project, three architects and seven developers are working on the documentation of the software architecture.
Which methods are appropriate in order to achieve a consistent and adequate documentation, and which are not? (Assign all answers.)
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質問 # 21
Which of the following statements apply to design patterns? (Choose two.)
- A. Design patterns are formally defined and can thus be proven to be correct.
- B. The number of design patterns used is proportional to the software architecture's quality.
- C. Design patterns should always be described alongside the problem they are supposed to solve.
- D. Design patterns are not invented but discovered.
正解：C、D
質問 # 22
What is the main benefit of the layered architectural pattern? (Assign all answers.)
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質問 # 23
For which quality characteristics is the software architect responsible?
Please name the two characteristics that best match the role of the software architect. (Choose two.)
- A. The software is free of errors
- B. The performance of the software
- C. The technical quality of the software implementation
- D. The suitability of the software design for its purpose
正解：B、C
質問 # 24
Which of the following statements regarding the design principle 'information hiding' are true and which are false? K-Question. Assign all answers
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質問 # 25
You are the software architect on a large development project and are entrusted with the task of building a tool chain for continuous architecture evaluation and analysis.
Which of the following statements regarding this tool selection are correct/incorrect? (Assign all answers.)
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質問 # 26
Concerning external interfaces, Postel's law suggests: "Be conservative in what you do, be liberal in what you accept from others." Assume that Postel's law has been consistently applied in your system. (Assign all answers.)
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質問 # 27
Which statements with regard to project objectives and architectural objectives are true and which are false?
(Assign all answers.)
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質問 # 28
Which two of the following requirements are examples of quality requirements? (Choose two.)
- A. Spelling is corrected automatically.
- B. Up to 40,000 requests per day
- C. Failure rate is less than 0.1%.
- D. User should be able to select the sort order freely.
正解：A、C
解説：
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.
質問 # 29
What do you have to take into account when designing external interfaces? (Choose three.)
- A. Effect on the coupling in the building block view
- B. Protocols enforced by neighbouring systems
- C. Volatility of neighbouring systems
- D. Adequate usage of the broker pattern
- E. Ease of implementation
- F. Expected amount of parallel calls
正解：A、B、E
質問 # 30
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