--- service: j.root-servers.net start-period: '2016-12-23T00:00:00Z' end-period: '2016-12-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5997175361 dns-udp-queries-received-ipv6: 620192510 dns-tcp-queries-received-ipv4: 171877476 dns-tcp-queries-received-ipv6: 12853780 dns-udp-responses-sent-ipv4: 5897032817 dns-udp-responses-sent-ipv6: 624204892 dns-tcp-responses-sent-ipv4: 162216784 dns-tcp-responses-sent-ipv6: 12830227