--- service: d.root-servers.net start-period: '2016-03-30T00:00:00Z' end-period: '2016-03-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4797918167 dns-udp-queries-received-ipv6: 580912200 dns-tcp-queries-received-ipv4: 36510908 dns-tcp-queries-received-ipv6: 614742 dns-udp-responses-sent-ipv4: 4775173735 dns-udp-responses-sent-ipv6: 580605710 dns-tcp-responses-sent-ipv4: 36479112 dns-tcp-responses-sent-ipv6: 614704