Computer Networking
Bulletin board system

converts analog signals to digital signals
converts digital signals to analog signals
is a public access message system
is a modem capable of accepting commands
None of these

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Computer Networking
If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame?

Discard it and send an error message back to the originating host
Flood the network with the frame
Add the destination to the MAC address table and then forward the frame
Add the source address and port to the MAC address table and forward the frame out the destination port

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