Tolong jawab dengan benar

1. email, E-commerce, E-banking, Chatting, voip, telnet, internet relay chat(IRC).
2. LAN, MAN, WAN, PAN.
3. Topologi ring, topologi bus, topologi star, topologi mesh, topologi tree.
4. peer to peer, client-server, LAN tester, HUB and SWITCH, router, repeater and bridge