Exhibit

You work as a network technician at Domain.com. Study the exhibit carefully. What is the best way for Domain.com to make sure that it does not become a transit autonomous system?

A.
Use static routes to reach its service providers.

B.
Synchronize routes between its service providers.

C.
Place access list on its border routers to block transit traffic.

D.
Filter out all external routes from the updates it sends to its service providers.