Which three features are considered part of the IPv6 first-hop security suite? (Choose three.)
A.
DNS guard
B.
destination guard
C.
DHCP guard
D.
ICMP guard
E.
RA guard
F.
DoS guard
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Destination guard: drop ipv6 traffic sent to directly connected but not in first-hop security binding table. to prevent ND exhaustion attack
DHCP guard: to prevent get ipv6 address from unauthorised DHCP server
RA Guard: Reject fake RA message from host (non-router)ports
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