350-801 CLCOR: Implementing and Operating Cisco Collaboration Core TechnologiesDemo

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QuestionQ271

Voice Gateways and Session Border Controllers

A customer reports that the load-balancing solution is not functioning for two Cisco Unified Border Element routers. The (cube1.abc.com) router must receive 60% of calls, and the (cube2.abc.com) router must receive 40% of calls. Assuming that all DNS A records exist, which two SRV configurations would achieve the required result?

Choose two
  • A _sip_udp.abc.com 60 IN SRV 60 1 5060 cube1.abc.com
  • B _sip_udp.abc.com 60 IN SRV 1 40 5060 cube2.abc.com
  • C _sip_udp.abc.com 60 IN SRV 3 60 5060 cube2.abc.com
  • D _sip_udp.abc.com 60 IN SRV 2 60 6060 cube1.abc.com
  • E _sip_udp.abc.com 60 IN SRV 1 60 5060 cube1.abc.com
Explanation

DNS SRV records use the field order Priority, Weight, Port, Target. Targets with the same priority are selected according to their relative weights. Setting both targets to priority 1, with weights of 60 for cube1.abc.com and 40 for cube2.abc.com, on port 5060 produces a 60%/40% distribution.

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