You are deploying a branch site which connects to two hub locations over an IPsec VPN.
The branch SRX Series device should send all traffic to the first hub unless it is unreachable
and should then direct traffic to the second hub. You must use static routes to send traffic
towards the hub site.
Which two technologies should you use to fail over from a primary to a secondary tunnel in
less than 60 seconds? (Choose two.)

A.
dead peer detection

B.
VPN monitoring

C.
floating static routes

D.
IP monitoring