Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 72

A DMVPN single hub topology is using IPsec + mGRE with OSPF.
What should be configured on the hub to ensure it will be the designated router?

Answer options

• A. route map to set the metrics of learned routes to 110
• B. tunnel interface of the hub with ip nhrp ospf dr
• C. OSPF priority to 0
• D. OSPF priority greater than 1

Correct answer: D

Explanation

Setting the OSPF priority greater than 1 on the hub allows it to be elected as the designated router since OSPF selects the router with the highest priority as the DR. Option A does not influence DR election, option B is incorrect as it does not set the priority, and option C explicitly prevents the hub from becoming the DR by setting the priority to 0.