Is it necessary for me to use a modem to connect to the internet ?? or i can do without ?? can i connect to the internet using a router if i am using a T1 line ??

just wondering do i still need a firewall if i am using a vpn concentrator ?? or vpn concentrator is a firewall it self ??

Manage switch allow remote configuration for network administrator. If i have an office in perth and another office in sydney, can the network administrator in sydney configure the switch located in perth ??

My organization wanted to connect to the internet via the IP VPN service offered by the service provider. Just wondering what are the recommanded modem that i can used which are offered by cisco ??

I have five retail outlet and one warehouse and i wonder if i can connect all the retail outlet router to the router in Outlet #1. Some of the outlet is as far as 150 km. If i would like to connect all the outlet to the router in Oulet #1, does that ...