Which three of the statements below correctly describe the characteristics of Autonomous
Systems in routed networks? (Select three)

A.
Within an AS, all routers must run either BGP or IBGP.

B.
An AS uses exterior gateway protocols (EGPs) to exchange information with other
autonomous systems.

C.
An AS is a group of routers under the same technical administration.

D.
Within an AS, routes learned through BGP can be redistributed using interior gateway
protocols.

E.
Within an AS, routes learned through an interior protocol cannot be redistributed using
BGP to other autonomous systems.