Questions: Determining the necessary hardware is an example of a physical design process.

The answer is the second one (or B): necessary hardware.

Explanation for each option:

1. Recruitment steps: This option is incorrect because recruitment steps pertain to human resources and hiring processes, not to physical design in a technical or engineering context.
2. Necessary hardware: This option is correct because determining the necessary hardware is a key part of the physical design process in fields such as computer engineering, network design, and system architecture. It involves selecting and specifying the physical components required to build a system.
3. Data exchange: This option is incorrect because data exchange refers to the transfer of data between systems or components, which is more related to logical or software design rather than physical design.
4. Data storage: This option is incorrect because data storage involves methods and technologies for storing data, which can be part of both physical and logical design processes, but it is not as directly related to the physical design process as determining necessary hardware.

Summary: Determining the necessary hardware is an example of a physical design process.