An organization wants to create a server VM that is segregated from the rest of the servers. Which of the following should the server administrator configure?

A virtual NIC can be assigned to a dedicated virtual switch or VLAN, effectively placing the server VM in its own isolated network segment separate from other servers. This is the primary mechanism in hypervisor environments for achieving network-level segregation without requiring physical hardware changes. The administrator controls which virtual network the VM participates in simply by configuring the virtual NIC's switch/port group assignment.

A trunk port carries multiple VLANs over a single physical link and is used for VLAN tagging between switches, not for segregating a specific VM.

Virtual memory is a host resource management concept that maps RAM to disk storage; it has no role in network or server segregation.

A VPN connection encrypts traffic between remote endpoints but does not segregate a server from others within the same local or virtual environment.