--- service: j.root-servers.net start-period: '2017-01-04T00:00:00Z' end-period: '2017-01-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6401656606 dns-udp-queries-received-ipv6: 610596829 dns-tcp-queries-received-ipv4: 199429113 dns-tcp-queries-received-ipv6: 11523676 dns-udp-responses-sent-ipv4: 6285292109 dns-udp-responses-sent-ipv6: 614738887 dns-tcp-responses-sent-ipv4: 176398706 dns-tcp-responses-sent-ipv6: 11607731