--- service: j.root-servers.net start-period: '2017-02-19T00:00:00Z' end-period: '2017-02-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6100897801 dns-udp-queries-received-ipv6: 644677497 dns-tcp-queries-received-ipv4: 180738523 dns-tcp-queries-received-ipv6: 10791834 dns-udp-responses-sent-ipv4: 5992586523 dns-udp-responses-sent-ipv6: 647209661 dns-tcp-responses-sent-ipv4: 154949597 dns-tcp-responses-sent-ipv6: 10934887