An administrator must connect multiple Unity Connection clusters using Digital Networking. Which service is required tor the administrator to achieve Digital Networking between the clusters?

Cisco Unity Connection Digital Networking enables the linking of multiple, geographically dispersed Unity Connection servers or clusters into a single, seamless system. The core function of this network is to replicate directory information across all locations, allowing users to find and send messages to any other user in the network. The specific service responsible for this directory synchronization is the Connection Digital Networking Replication Agent. This service must be activated and running on all Unity Connection nodes that participate in the Digital Network to ensure directory data is consistently replicated.

B. Connection Digital Networking Service: This is a generic term and not the official name of the specific service responsible for directory replication in a Digital Network.
C. Connection Digital Networking Replication Service: This name is incorrect. While the function is replication, the official component name in the Unity Connection service list is "Agent," not "Service."
D. Connection Digital Networking Agent: This name is incomplete. It omits the term "Replication," which is the critical function of this agent in the context of Digital Networking.

1. Cisco, "Networking Guide for Cisco Unity Connection, Release 12.x": In the chapter "Digital Networking in Cisco Unity Connection 12.x," the section "How Digital Networking Works" explicitly states, "Digital Networking relies on the Connection Digital Networking Replication Agent service to replicate directory information between locations."

2. Cisco, "System Administration Guide for Cisco Unity Connection, Release 12.x": In the chapter "Cisco Unity Connection Services," the service list table describes the Connection Digital Networking Replication Agent as the service that "replicates directory information between locations in a Cisco Unity Connection network." This confirms its role and official name.