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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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.Design patterns should always be described alongside the problem they are supposed to solve.
• C.The number of design patterns used is proportional to the software architecture's quality.
• D.Design patterns are not invented but discovered.

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Which of the following statements are correct? P-Question. From the following 4 answers select 2 that fit best.

• A.A stack usually only provides access to one element at a time
• B.A stack acts exactly like a queue
• C.A stack is organised according to the FIFO principle
• D.The push operation usually places a new element onto a stack

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Name the three most important fields of template-based architecture documentation. P-Question. From the following 5 answers select 3 that fit best.

• A.To use a standardized document structure
• B.To reuse code and test case templates
• C.To describe module structures (white boxes)
• D.To use copyright templates for a consistent description of project/system meta information within documents and source codes
• E.To describe individual architectural modules and their external interfaces (black boxes)

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Which of the following statements about (crosscutting) concepts are most appropriate? (Select four.)

• A.The definition of appropriate concepts ensures the conceptual integrity of the architecture.
• B.Uniform usage of concepts reduces coupling between building blocks.
• C.Concepts are a means to increase consistency.
• D.For each quality goal there should be an explicitly documented concept.
• E.A concept might be implemented by a single building block.
• F.A concept can define constraints for the implementation of many building blocks.
• G.Uniform exception handling is most easily achieved when architects agree with developers upon a suitable concept prior to implementation.

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