Final answer:
M;anaging a database server via RDP that is restricted to NIC3 from the sysadmin network, touching upon network management and access control in the context of IT administration.
Step-by-step explanation:
Managing a database (DB) server via Remote Desktop Protocol (RDP), which is a method that allows a user to connect and control a remote computer over a network. Specifically, the management of the server is restricted to be performed only through the Network Interface Card (NIC) labeled as NIC3.
Furthermore, it specifies that such remote management can only be initiated from the 'sysadmin network', suggesting a dedicated network segment for system administrators or IT professionals who perform maintenance and setup tasks on servers within an organization. To implement such a setup, network security configurations would need to ensure that RDP traffic is only allowed through NIC3 and only from authorized networks.