Final answer:
Clients under SaltStack Enterprise, known as minions, make requests to the master server. These requests involve receiving instructions and sending data back to the master based on defined management policies.
Step-by-step explanation:
Clients under SaltStack Enterprise make requests to the master server. SaltStack Enterprise extends the capabilities of the open-source Salt project, which is a powerful configuration management and remote execution system. Clients in this context are usually referred to as minions, which are the nodes or servers managed by the Salt master. Minions communicate with the master to receive instructions and send back data. This communication is initiated by the minions, which periodically check in with the Salt master to ask for new commands or state changes, which are specified by the management policies defined on the master.