--- service: d.root-servers.net start-period: '2016-03-23T00:00:00Z' end-period: '2016-03-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4594243774 dns-udp-queries-received-ipv6: 580874130 dns-tcp-queries-received-ipv4: 32437647 dns-tcp-queries-received-ipv6: 594629 dns-udp-responses-sent-ipv4: 4571566585 dns-udp-responses-sent-ipv6: 576783242 dns-tcp-responses-sent-ipv4: 32465137 dns-tcp-responses-sent-ipv6: 594596