A. _sip._udp.abc.com 60 IN SRV 2 60 5060 cube1.abc.com
B. _sip._udp.abc.com 60 IN SRV 60 1 5060 cube1.abc.com
C. _sip._udp.abc.com 60 IN SRV 1 40 5060 cube2.abc.com
D. _sip._udp.abc.com 60 IN SRV 3 60 5060 cube2.abc.com
E. _sip._udp.abc.com 60 IN SRV 1 60 5060 cube1.abc.com