Which deployment model offers geographic datacenter redundancy, remote failover, high availability, scale, and local failover?
A. multisite with distributed call processing
B. dual call control
C. multisite with centralized call processing
D. clustering over the WAN
E. campus
CUCM Deployment Models:
Some of the characteristics of Clustering over the IP WAN model include:
Applications and CUCM servers of the same cluster can be distributed over the IP WAN.
The IP WAN carries intracluster server communication and signaling.
Limited number of sites:
Two to four sites for local failover (two CUCM servers per site)
Up to eight sites for remote failover across the IP WAN (one CUCM server per site).
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D is correct
I agree should be C — Multisite with distributed call processing does not have remote failover as the cluster is located in the site itself.
I reviewed the Chapter 2: CUCM Deployment Models of Cisco 300-070 FLG, now I am thinking D is the correct answer. ‘Clustering over the WAN’ provides local failover AND remote failover.
‘A’ does not provider remove failover; ‘C’ does not have ‘remote failover’.
I am sorry. I was confused the other day. Obviously, A. multisite with distributed call processing offers all these features.
C should be the answer.
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab10/collab10/models.html
Local failover requires that you place the Unified CM subscriber and backup servers at the same site, with no WAN between them. This type of deployment is ideal for two to four sites with Unified CM
‘ No WAN’ this excludes D as the answer.
“The multisite deployment with distributed call-processing model is a superset of both the single-site and multisite WAN with centralized call processing models.”