Which of the following is TRUE about the Physical Design?

Question

BlackTom AI · Accepted Answer

Physical design defines how system requirements are implemented in concrete hardware, software, data storage, user interfaces and transaction flows — in other words, the detailed “how” of the solution rather than the “what.”

1) Relevant knowledge points and concepts
- Logical design vs. physical design: Logical design specifies what is required (data models, functional requirements, outputs) and the idealized processes. Physical design translates those logical specifications into concrete implementations (file structures, database schemas, indexes, screen layouts, input validation, hardware, network configurations, and storage formats).  
- Physical design responsibilities include defining how requirements are satisfied (algorithms, modules, performance tuning) and how data is captured (forms, input validation, data entry screens, sensors).

2) Step-by-step reasoning
- Start from the distinction: if an option emphasizes “what is required,” it points to logical requirements, not physical design.  
- If an option emphasizes “how” requirements are satisfied and the mechanisms for data input, it matches the physical design focus (implementation and input interfaces).  
- Compare each option to these roles.

3) Calculations
- Not applicable; this is conceptual.

4) Why the correct answer is correct
- Option B states “Concerned with how the requirements are satisfied and how the data is input.” That directly describes implementation detail (how requirements are realized) and input mechanisms (screens/forms/validation), which are central to physical design.

5) Why the other options are incorrect
- A (“what is required and how the data is input”): mixes logical (“what is required”) with input; physical design does inputs but not defining high-level requirements.  
- C (“how the requirements are satisfied and what information will be output”): partially correct on “how” but “what information will be output” is typically determined during logical design; physical design focuses on implementation of outputs rather than selecting output content.  
- D (“what is required and what processes must be performed”): describes logical/requirements analysis, not physical implementation.

6) Conclusion
The correct choice is B. This matches the provided answer: B. Concerned with how the requirements are satisfied and how the data is input.

Which of the following is TRUE about the Physical Design?单项选择题

类似问题

Safety considerations for inductive loads, what can an inductive load cause?

Which of the below are losses in a DC machine?

The force exerted on a conductor of 10 meters, carrying a current of 25A, in a field of 0.05T is?

MEPS is a standard required before appliances can be for sale or commercial use

Minimum Energy performance Standards are used for all machines over:

Maximum efficiency in a DC machine occurs when:

The efficiency of a DC motor is basically related to:

Which is NOT a loss in a DC motor

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单