When applying MD5 route authentication on routers running RIP or EIGRP, which two important key chain considerations should be accounted for ? (Choose two)
A. Key 0 of all key chains must match for all routers in the autonomous system
B. No more than three keys should be configured in any single chain
C. Routers should be configured for NTP to synchronize their clocks
D. The Lifetimes of the keys in the chain should overlap
E. Link compression techniques should be disabled on links transporting any MD5 hash
