At which layer of the OSI model is RSTP used to prevent loops?
A.
physical
B.
data link
C.
network
D.
transport
Explanation:
RSTP and STP operate on switches and are based on the exchange of Bridge Protocol Data
Units (BPDUs) between switches. One of the most important fields in BPDUs is the Bridge
Priority in which the MAC address is used to elect the Root Bridge -> RSTP operates at
Layer 2 – Data Link layer -> .