--- service: j.root-servers.net start-period: '2017-01-01T00:00:00Z' end-period: '2017-01-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5720340270 dns-udp-queries-received-ipv6: 583250378 dns-tcp-queries-received-ipv4: 178322959 dns-tcp-queries-received-ipv6: 10542363 dns-udp-responses-sent-ipv4: 5611986404 dns-udp-responses-sent-ipv6: 587008325 dns-tcp-responses-sent-ipv4: 156270758 dns-tcp-responses-sent-ipv6: 10610490