Computer Networking
The method of communication in which transmission takes place in both directions, but only one direction at a time is called

Half Duplex
Full Duplex
Simplex
Four wire circuit

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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?

Add the destination to the MAC address table and then forward the frame
Discard it and send an error message back to the originating host
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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Computer Networking
When a new trunk link is configured on an IOS-based switch, which VLANs are allowed over the link?

By default, all VLANs are allowed on the trunk.
Only extended VLAN's are allowed by default.
No VLAN's are allowed, you must configure each VLAN by hand.
Only configured VLAN's are allowed on the link.

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