A large corporate office is looking to place smaller network closets around campus to handle switching for remote workstations. To which of the following is this referring?

The MDF (Main Distribution Frame) is the central, primary network room that aggregates connections from all IDFs - it is not a smaller, distributed closet.

A VPN (Virtual Private Network) is a technology for creating encrypted tunnels over public networks and is unrelated to physical closet infrastructure.

RDP (Remote Desktop Protocol) is a Microsoft protocol for remotely accessing desktops and has nothing to do with physical network distribution.

An IDF is a smaller, distributed network closet that houses switches and patch panels for a specific area or floor of a campus. It connects back to the main MDF, allowing the network to extend access switching to areas far from the central distribution point.