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What are the sockets "console", "aux", "S0" and "F0" of C262 1 router used to connect? What's the role?
The console is the interface of the console. Restore the IOS password and use the debugging device.

AUX has the same function as the console port, and the connection mode is different, so it needs a regulator.

S0 is a serial port or "network card" to which an IP address can be added. The mouth is a place of flow.

It can be encapsulated by frame relay traffic HDLC PPP. .

F0 is a fast Ethernet port, just like the network card port of a PC.