Which statement correctly describes interface 21?

Refer to the exhibit.

This switch currently assigns all VLANs to Multiple Spanning Tree Protocol (MSTP) instance 0 or the Internal Spanning Tree (IST).

Which statement correctly describes interface 21?
A . The interface is down at Layer 2; it is not available for sending or receiving any traffic.
B . The interface is an edge port but has received Bridge Protocol Data Units (BPDUs), so it is disabled.
C . The interface does not forward or accept data traffic, but it is ready to start forwarding if interface 19 fails.
D . The interface does not support spanning tree; it is possible that it will introduce a loop in the network.

View Answer

Answer: B