Answer :
For setting environment parameters within a unit configuration file, the directives that should be potentially employed are environment or environment files.
What is a Configuration file?
Configuration files may be defined as those files that characterize the parameters, options, settings, and preferences subjected to operating systems (OSes), infrastructure devices, and applications in an IT context.
Each type of configuration file signifies its area of function. Such as the environmental file deals with the setting of environment parameters and hence it is potentially employed for the same.
Therefore, environment or environment files are the directives that should be potentially employed for setting environment parameters within a unit configuration file.
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