Networking - Spanning Tree Protocol - Discussion

Discussion :: Spanning Tree Protocol - Spanning Tree Protocol (Q.No.3)

3. 

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?

[A]. Forwards the switch to the first available link
[B]. Drops the frame
[C]. Floods the network with the frame looking for the device
[D]. Sends back a message to the originating station asking for a name resolution

Answer: Option C

Explanation:

Switches flood all frames that have an unknown destination address. If a device answers the frame, the switch will update the MAC address table to reflect the location of the device.

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