Which spanning-tree feature places a port immediately into a forwarding stated?

Which spanning-tree feature places a port immediately into a forwarding stated?
A . BPDU guard
B . PortFast
C . loop guard
D . UDLD
E . Uplink Fast

Answer: B

Explanation:

PortFast causes a switch or trunk port to enter the spanning tree forwarding state immediately, bypassing the listening and learning states. You can use PortFast on switch or trunk ports that are connected to a single workstation, switch, or server to allow those devices to connect to the network immediately, instead of waiting for the port to transition from the listening and learning states to the forwarding state.

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