--- service: d.root-servers.net start-period: '2016-04-11T00:00:00Z' end-period: '2016-04-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4525582466 dns-udp-queries-received-ipv6: 597183106 dns-tcp-queries-received-ipv4: 39599056 dns-tcp-queries-received-ipv6: 611076 dns-udp-responses-sent-ipv4: 4508145562 dns-udp-responses-sent-ipv6: 596915813 dns-tcp-responses-sent-ipv4: 39543534 dns-tcp-responses-sent-ipv6: 611064