A network administrator needs to stabilize connectivity between two buildings over an Ethernet uplink using the 802.1Q port and a WAN link. Which of the following documents provides the most information to scale the network with this solution?

Site survey results detail the physical environment where the network is deployed, including factors such as signal strength and interference. While important for understanding the physical layout, they do not provide the necessary information about network architecture or how to scale the network effectively.

A physical diagram shows the physical layout of the network, including the locations of hardware like switches and routers. Although it helps visualize the actual setup, it lacks details about the logical data flow and network protocols, which are essential for scaling and optimizing connectivity between buildings.

A service level agreement (SLA) outlines the expectations and responsibilities between service providers and clients regarding service quality and performance metrics. While it is critical for ensuring service reliability, it does not provide technical details about the network architecture needed for scaling the Ethernet uplink solution.