Computer Networking
Which of the following are valid ways to refer only to host 172.16.30.55 in an IP access list? 1. 172.16.30.55 0.0.0.255 2. 172.16.30.55 0.0.0.0 3. any 172.16.30.55 4. host 172.16.30.55 5. 0.0.0.0 172.16.30.55 6. ip any 172.16.30.55

1, 4 and 6
3 and 5
2 and 4
1 and 4

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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
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
Flood the network with the frame

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