Final answer:
In a physical network diagram, several entities should be documented, including servers, clients, firewalls, VoIP phones, and WAN links.
Step-by-step explanation:
In a physical network diagram, it is important to document several entities:
- Servers: These are computers or systems that provide services or resources to other devices on the network.
- Clients: These are the devices that access the resources or services provided by servers.
- Firewalls: These are security devices that monitor and control incoming and outgoing network traffic.
- VoIP Phones: These are devices used for making phone calls over the internet.
- WAN Links: These are connections that allow devices to communicate over a wide area network.