Implementing Cisco Enterprise Wireless Networks (ENWLSI) — Question 186

An engineer configures Cisco CMX. which uses Layer 2 high availability on primary and secondary CMX instances, according to these specifications:

• Primary CMX IP address: 192.168.1.4/24
• Secondary CMX IP address: 192.168.4.4/24
• Virtual IP address: 192.168.4.1/24

During testing, the engineer discovers that the failover fails. Which action resolves the issue?

Answer options

• A. Place the primary CMX IP address and the virtual IP address in the same subnet.
• B. Place the secondary CMX IP address and the virtual IP address in different subnets.
• C. Use a virtual IP address with CMX Layer 3 high availability.
• D. Place the primary CMX IP address and the secondary CMX IP address in the same subnet.

Correct answer: D

Explanation

The correct answer is D because both the primary and secondary CMX instances need to be in the same subnet for Layer 2 high availability to function correctly. Options A and B incorrectly suggest subnet configurations that would not resolve the issue, and option C is irrelevant as it suggests changing to Layer 3 high availability instead of addressing the Layer 2 setup.