What is the maximum number of call processing servers supported in a single cluster?

The correct answer is B. 8. A single CUCM cluster supports a maximum of 8 call processing nodes (CUCM subscriber nodes) in addition to the publisher. The publisher itself typically handles call processing as well, giving up to 8 total call-processing servers per cluster (in some versions counted as the…

Cisco Unified Communications Manager (CUCM)

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(19 responses)

B
89% (17)
E
5% (1)
F
5% (1)

Explanation

A single CUCM cluster supports a maximum of 8 call processing nodes (CUCM subscriber nodes) in addition to the publisher. The publisher itself typically handles call processing as well, giving up to 8 total call-processing servers per cluster (in some versions counted as the publisher plus 7 subscribers, or up to 8 subscriber/publisher nodes with call processing roles). Additional nodes in a cluster can serve other roles (TFTP, MOH, etc.) but the call processing limit is 8. This figure has been consistent across the CICD/CCNA Collaboration exam objectives.

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#cluster sizing#call processing nodes#CUCM cluster#scalability

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