--- service: j.root-servers.net start-period: '2016-12-30T00:00:00Z' end-period: '2016-12-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6146080123 dns-udp-queries-received-ipv6: 602339063 dns-tcp-queries-received-ipv4: 199960723 dns-tcp-queries-received-ipv6: 10792953 dns-udp-responses-sent-ipv4: 5996498920 dns-udp-responses-sent-ipv6: 606288743 dns-tcp-responses-sent-ipv4: 170905057 dns-tcp-responses-sent-ipv6: 10824348