--- service: d.root-servers.net start-period: '2015-10-19T00:00:00Z' end-period: '2015-10-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3451133434 dns-udp-queries-received-ipv6: 415903120 dns-tcp-queries-received-ipv4: 16139128 dns-tcp-queries-received-ipv6: 529173 dns-udp-responses-sent-ipv4: 3433711108 dns-udp-responses-sent-ipv6: 415461427 dns-tcp-responses-sent-ipv4: 16120170 dns-tcp-responses-sent-ipv6: 528943