Answer:
Hardware requirements for WAN's
WAN needs a minimum of RAM with capacity 2GB, 16-20GB minimum disk space, and a standard Intel or AMD x86-64 CPU.
Full Mesh Deployment: WAN Optimization requires 1GB additional RAM per remote peer, minimum of 16-20GB additional disk space per remote peer.
Hardware components of a LAN consist of PCs/workstations and servers. Cabling and connectors, for example, BNC connector, coaxial cable, (UTP) and RJ-45 connector.
Types of WAN connections
Leased Lines.
Circuit Switching Network
Packet Switching Network