Computer Networking
Which of the following best illustrates the default subnet mask for a class A,B, and C Network?

255.255.0.0, 255.255.255.0, 255.255.255.255
0.0.0.0, 0.0.0.1, 0.0.1.1
None of these
255.255.255.0, 255.255.0.0, 255.0.0.0
255.0.0.0, 255.255.0.0, 255.255.255.0

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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?

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

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