--- service: d.root-servers.net start-period: '2015-11-26T00:00:00Z' end-period: '2015-11-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3471860030 dns-udp-queries-received-ipv6: 392526260 dns-tcp-queries-received-ipv4: 17120535 dns-tcp-queries-received-ipv6: 552659 dns-udp-responses-sent-ipv4: 3454895972 dns-udp-responses-sent-ipv6: 392220474 dns-tcp-responses-sent-ipv4: 17026109 dns-tcp-responses-sent-ipv6: 552398