You have multiple OTV edge devices in each OTV site.
Which configuration prevents an end-to-end STP loop?
A . FHRP filtering
B . selective unicast flooding
C . AED election
D . ARP local caching
Answer: C
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DCI3_OTV_Intro/DCI_1.html