Which of the following could act as clients of FME Server?

• A. A database
• B. An email server
• C. A person
• D. All of the above

Answer: (D)

FME Server is meant to be driven by a variety of clients that initiate or control workflows. Any component that can communicate with FME Server to start a job, provide input data, or receive output can be considered a client.

A database can act as a client because workflows can read data from or write data to a database, integrating the database as a source or destination in automated processes. An email server can act as a client through features like email-triggered workflows, where inbound messages start a processing task. A person can act as a client by using the web interface or making REST API calls to start, monitor, or retrieve results from FME Server.

Since each of these can interact with FME Server in a different way, all of the above could be clients.