Implementing Cisco ACI Advanced (DCACIA) — Question 33

Which action must be taken to connect two nonsilient servers in active/standby mode to two ACI leaves?

Answer options

• A. Implement a virtual PortChannel on ACI leaves
• B. Enable ARP flooding for the bridge domain if the MAC address of the active interface changes after NIC failover
• C. Configure ARP flooding for the bridge domain if the MAC address of the active interface stays identical after a NIC failover
• D. Disable dataplane learning to avoid endpoint flapping

Correct answer: C

Explanation

Option C is correct because ARP flooding must be configured when the MAC address does not change, ensuring that ARP requests reach the correct endpoint. Option A is incorrect as a virtual PortChannel is not needed for the connection setup. Option B is wrong because it addresses the situation when MAC changes, which is not the case here. Option D is incorrect since disabling dataplane learning is not necessary and may cause more issues than it solves.