Implementing Cisco IP Routing (CCNP ROUTE, legacy) — Question 242

Which three statements are true about EIGRP operation? (Choose three.)

Answer options

• A. When summarization is configured, the router will also create a route to null 0.
• B. The summary route remains in the route table, even if there are no more specific routes to the network.
• C. Summarization is configured on a per-interface level.
• D. The maximum metric for the specific routes is used as the metric for the summary route.

Correct answer:

Explanation

Option A is correct because when summarization is enabled, a route to null 0 is indeed created to prevent routing loops. Option B is also accurate since the summary route persists in the routing table regardless of specific routes' presence. Option C is correct as summarization can be configured at the interface level, while Option D is false because the metric for the summary route is calculated differently, not just based on the maximum metric of specific routes.