Posted by: Pdfprep
Post Date: November 18, 2020
Refer to the exhibit.
This switch currently assigns all VLANs to 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 does not forward or accept data traffic, but it is ready to start forwarding if interface 19 fails.
C . The interface is an edge port but has received Bridge Protocol Data Units (BPDUs), so it is disabled.
D . The interface does not support spanning tree; it is possible that it will introduce a loop in the network.
Answer: B