Cisco 2651 Dual Fast Ethernet Router, 12.4IPb.

Problem is with my limited Cisco knowledge. Basically I wanted to prepare for my Cisco certifications and do some Networking testing
I have managed to contact the seller and he will send me the output of ?show version? tomorrow.
It is a Cisco 2651 Dual Fast Ethernet Router with
IOS 12.4 IPb.
Memory 64D/32F.

Also it has two Ethernet ports, according to the seller I should be able to connect my ADSL Router to one port and 2600 switch (probably on the Trunking port on the switch) onto the other Ethernet port.

I am not sure either, if I can make the Netgear in bridge mode ( it has everything built in not much management). If I can’t go to the Internet still I should be able to do all my preparation locally?