Pick the most appropriate server$/$system$/$term given below for the five boxes shown in the network diagram $($Image$).$

TCP$/$UDP$,$ Internal Firewall, Path of Logical Access, Web Server, Antivirus$/$Endpoint Protection System Server, Protocol, External Firewall, ARP Server, DMZ$,$ WAN, DSL$,$ HFC$,$ Socket, UTP, Layer, DoS, ATP