Which two statements correctly describe the BGP ttl-security feature? (Choose two.)
A.
This feature protects the BGP processes from CPU utilization-based attacks from EBGP
neighbors which can be multiple hops away
B.
This feature prevents IBGP sessions with non-directly connected IBGP neighbors
C.
This feature will cause the EBGP updates from the router to be sent using a TTL of 1
D.
This feature needs to be configured on each participating BGP router
E.
This feature is used together with the ebgp-multihop command
http://www.cisco.com/c/en/us/td/docs/ios/12_2s/feature/guide/fs_btsh.html#wp1027195
Prerequisites
To maximize the effectiveness of this feature, we recommend that you configure it on each participating router.
Restrictions
The neighbor ebgp-multihop command is not needed when this feature is configured for a multihop peering session and should be disabled before configuring this feature.