What is correct about the BGP synchronization command? (Choose two.)
A.
Synchronization is necessary when peering with an EBGP neighbor.
B.
Synchronization improves BGP routing convergence.
C.
If it is turned ON, a prefix learned from IBGP neighbor is valid only if a non-bgp (IGP) route
exists for that prefix.
D.
Synchronization can be turned off if all the transit routers in an Autonomous system running full
mesh IBGP.
E.
Synchronization must be enabled when implementing a multi-homed BGP connection to
multiple ISPs.