A company is going to deploy Cisco Jabber for internal communication with phone services and Cisco UCM Instant Messaging (IM) and Presence. The administrator wants to provision a generic Cisco…

Question

Options

• ASet up a DNS SRV record with _cisco_ucs._udp.exampledomain
• BSet up a DNS SRV record with _cisco_imp._tcp.exampledomain
• CSet up a DNS SRV record with _cisco_uds._tcp.exampledomain
• DSet up a DNS SRV record with _cisco_ucs._tcp.exampledomain

• A
  5% (1)
• B
  9% (2)
• C
  86% (19)

Explanation

Cisco Jabber for Windows uses DNS SRV records for automatic service discovery to locate the Cisco Unified Communications infrastructure without manual configuration. The correct DNS SRV record for this purpose is _cisco_uds._tcp.<domain>, which points Jabber to the Cisco User Data Services (UDS) - a REST-based API on Cisco UCM that provides user authentication, directory lookup, and service profile information. Once Jabber contacts UDS, it can automatically discover UCM, IM & Presence, and other collaboration services. Option A (_cisco_ucs._udp) uses the wrong protocol (UDP instead of TCP) and wrong service name. Option B (_cisco_imp._tcp) is not a standard Jabber discovery record. Option D (_cisco_ucs._tcp) is not the correct service name for Jabber's primary discovery mechanism - UDS is the correct target.

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