--- service: j.root-servers.net start-period: '2016-01-20T00:00:00Z' end-period: '2016-01-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5104017346 dns-udp-queries-received-ipv6: 570287496 dns-tcp-queries-received-ipv4: 119721993 dns-tcp-queries-received-ipv6: 2333946 dns-udp-responses-sent-ipv4: 4717604017 dns-udp-responses-sent-ipv6: 575568698 dns-tcp-responses-sent-ipv4: 104405889 dns-tcp-responses-sent-ipv6: 316598