Implementing Cisco IP Telephony and Video Part 2 (CIPTV2, legacy) — Question 4

Which method is recommended to implement high availability when configuring the Extension Mobility phone service?

Answer options

• A. unique phone service for each Cisco Unified Communications Manager server
• B. automatically handled by Cisco Unified Communications Manager
• C. server load balancer virtual IP
• D. DNS A record with multiple IPs listed

Correct answer: C

Explanation

The correct answer is C because using a server load balancer virtual IP allows for efficient traffic distribution and redundancy, which are essential for high availability. The other options either do not provide the same level of redundancy or are not recommended for this specific scenario.