--- service: d.root-servers.net start-period: '2016-04-06T00:00:00Z' end-period: '2016-04-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4798218518 dns-udp-queries-received-ipv6: 618388450 dns-tcp-queries-received-ipv4: 38960742 dns-tcp-queries-received-ipv6: 617408 dns-udp-responses-sent-ipv4: 4777937171 dns-udp-responses-sent-ipv6: 618121839 dns-tcp-responses-sent-ipv4: 38906289 dns-tcp-responses-sent-ipv6: 617379