--- service: d.root-servers.net start-period: '2016-05-04T00:00:00Z' end-period: '2016-05-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4492968788 dns-udp-queries-received-ipv6: 651375852 dns-tcp-queries-received-ipv4: 35372603 dns-tcp-queries-received-ipv6: 711495 dns-udp-responses-sent-ipv4: 4475231530 dns-udp-responses-sent-ipv6: 651127049 dns-tcp-responses-sent-ipv4: 35253711 dns-tcp-responses-sent-ipv6: 711283