Computer Networking
Bandlimited signal is

None of these
simultaneous transmission of data to a number of stations
a signal all of whose energy is contained within a finite frequency range
transmission of signals without modulation
All of these

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Computer Networking
What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table?

Drops the frame
Sends back a message to the originating station asking for a name resolution
Floods the network with the frame looking for the device
Forwards the switch to the first available link

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