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?

Flood the network with the frame
Discard it and send an error message back to the originating host
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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Computer Networking
The network layer, in reference to the OSI model, provide

data link procedures that provide for the exchange of data via frames that can be sent and received
the virtual circuit interface to packet-switched service
the interface between the X.25 network and packet mode device
All of these
None of these

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