An engineer is designing a security method for a service provider company that needs to secure
BGP peering with external peers. Based on the options provided, which three security precautions
should be taken? (Choose three.)

A.
Enable BGP neighbor authentication with MD5.

B.
Enable the BGP Time to Live Security Check feature.

C.
Limit the AS path length.

D.
Disable ebgp-multihop.

E.
Enable bgp bestpath as-path ignore.

F.
Enable bgp-policy.