Which two statements correctly describe how the AS path attribute is used by BGP? (Choose
two.)

A.
The AS path attribute is updated whenever an EBGP-learned route is re-advertised using
IBGP.

B.
The AS path attribute is updated in EBGP advertisements only and is the primary loopavoidance mechanism for BGP.

C.
When local preference is the same, the AS path attribute is a common tiebreaker, where paths
with fewer AS hops are preferred.

D.
When local preference is the same, the AS path attribute is a common tiebreaker, where paths
with more AS hops are preferred.

Explanation: