Your employer is ISP A. Your customers must be able to reach customers of both ISP B and ISP
C, but your network must not allow transit traffic between ISP B and ISP C at any time. Referring
to the exhibit, what are two solutions? (Choose two.)
Use policy to filter routes on AS number.
Use the well-known no-export community.
Use the MED to prefer the proper routes.
Use communities to identify and filter routes.