An organization wants to run on-premises instant messaging (IM), and resilience is important because this is a business-critical application for them. The organization has three locations with Cisco UCM clusters in each location. Which additional configuration is needed to meet these requirements?
To ensure resilience for a business-critical instant messaging application with on-premises deployment for an organization that has three locations with Cisco UCM clusters, it is necessary to deploy a minimum of two Cisco IM and Presence (IMP) servers per location. These servers should include one publisher and one subscriber connected to the existing local cluster. This setup ensures high availability and failover capability, meeting the resilience requirement of the organization.
IMP does support centralized Deployments, but the question states "resilience is important" The Recommended Deployment is "Deploy a pair of IM and Presence Service servers in a cluster configuration" https://www.cisco.com/c/dam/en/us/td/docs/solutions/PA/overview/15x/clbpa15x.pdf Recommandation should be to have two IMPs in each location. Therefore the answer is either B or C - I would choose B, because it clearly states "two Cisco IMP Servers per location"
Two Cisco IMP Servers per location