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300-810 · Question #294

A company must deploy Cisco Jabber massively for internal use. A collaboration engineer wants to enable service discovery to improve the user experience. Which DNS configuration must be applied on the

The correct answer is A. SRV Entry : _cisco-uds._tcp.<domain> Port : 8443 Destination : cucm.<domain>. Cisco Jabber uses the '_cisco-uds' SRV record to discover the Cisco User Data Services (UDS) endpoint on Cisco UCM, which provides user configuration and service profile data. This service uses TCP (not UDP) as its transport protocol, making '_cisco-uds._tcp' the correct service

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Question

A company must deploy Cisco Jabber massively for internal use. A collaboration engineer wants to enable service discovery to improve the user experience. Which DNS configuration must be applied on the DNS server? A. B. C. D.

Options

  • ASRV Entry : _cisco-uds._tcp.<domain> Port : 8443 Destination : cucm.<domain>
  • BSRV Entry : _cisco-uds._udp.<domain> Port : 5061 Destination : cucm.<domain>
  • CSRV Entry : _cisco-uds._tcp.<domain> Port : 5061 Destination : cucm.<domain>
  • DSRV Entry : _cisco-uds._udp.<domain> Port : 8443 Destination : cucm.<domain>

How the community answered

(48 responses)
  • A
    79% (38)
  • B
    4% (2)
  • C
    4% (2)
  • D
    13% (6)

Explanation

Cisco Jabber uses the '_cisco-uds' SRV record to discover the Cisco User Data Services (UDS) endpoint on Cisco UCM, which provides user configuration and service profile data. This service uses TCP (not UDP) as its transport protocol, making '_cisco-uds._tcp' the correct service identifier. Port 8443 is the correct HTTPS port for UDS - it is a web service that runs over HTTPS. Options B and D use UDP, which is incorrect for this service. Options C and D use port 5061, which is the SIP TLS port, not the UDS port.

Topics

#Cisco Jabber#Service Discovery#DNS SRV Records#Auto-discovery

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