Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) — Question 32

Which statement about route targets is true when using VRF-Lite?

Answer options

• A. Route targets control the import and export of routes into a customer routing table.
• B. When BGP is configured, route targets are transmitted as BGP standard communities.
• C. Route targets allow customers to be assigned overlapping addresses.
• D. Route targets uniquely identify the customer routing table.

Correct answer: A

Explanation

The correct answer is A because route targets are specifically used in VRF-Lite to control which routes are imported and exported from a customer’s routing table. Option B is incorrect as route targets can be carried in BGP but are not limited to just standard communities. Option C is misleading because while overlapping addresses can be managed through VRF, it is not solely due to route targets. Option D is also incorrect since route targets do not uniquely identify routing tables; they help in managing the import/export of routes instead.