Exam 300-070 Question id=3636 Describe and Configure CUCM to Support On-Cluster Calling

Which two features are advantages of deploying a cluster over WAN?

A. shared line appearances
B. centralized DSP resources
C. extension mobility within the cluster
D. scalability up to 20 sites, if there is sufficient IP WAN bandwidth
E. failover to co-resident Cisco Unified Call Manager Express platforms

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