--- service: d.root-servers.net start-period: '2016-05-03T00:00:00Z' end-period: '2016-05-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4268851976 dns-udp-queries-received-ipv6: 647144922 dns-tcp-queries-received-ipv4: 36676492 dns-tcp-queries-received-ipv6: 685454 dns-udp-responses-sent-ipv4: 4251335180 dns-udp-responses-sent-ipv6: 646917423 dns-tcp-responses-sent-ipv4: 36539567 dns-tcp-responses-sent-ipv6: 685200