Click the Exhibit button. You work for ISP A. Customers of both ISP B and ISP C must be
able to reach all of your customers, but your network must not allow transit traffic between
ISP B and ISP C. Referring to the exhibit, which two methods could you use? (Choose two.)

A.
Use local preference to prefer the proper routes.

B.
Use the well-known no-transit community.

C.
Use policy to filter routes on AS number.

D.
Use communities to identify and filter routes.

Explanation: