Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 346

Which of the following statements are true regarding two EIGRP routers to become neighbors?

Answer options

• A. Must have identical hello and dead timers
• B. Must utilize unique router ID’s
• C. Must have matching MTU’s on the physical network links that connect the routers.
• D. Must use the same ASN.

Correct answer: D

Explanation

The correct answer is D because EIGRP routers must be configured with the same Autonomous System Number to form a neighbor relationship. Options A, B, and C are incorrect because while having identical hello and dead timers and matching MTUs can help in establishing a connection, they are not strict requirements like the ASN. Unique router IDs do not prevent routers from becoming neighbors.