--- service: d.root-servers.net start-period: '2016-04-22T00:00:00Z' end-period: '2016-04-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4295395881 dns-udp-queries-received-ipv6: 603224706 dns-tcp-queries-received-ipv4: 37977995 dns-tcp-queries-received-ipv6: 590822 dns-udp-responses-sent-ipv4: 4276633525 dns-udp-responses-sent-ipv6: 602974348 dns-tcp-responses-sent-ipv4: 37886426 dns-tcp-responses-sent-ipv6: 590734