--- service: d.root-servers.net start-period: '2016-03-11T00:00:00Z' end-period: '2016-03-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4152412501 dns-udp-queries-received-ipv6: 522333353 dns-tcp-queries-received-ipv4: 28363535 dns-tcp-queries-received-ipv6: 1186790 dns-udp-responses-sent-ipv4: 4134289394 dns-udp-responses-sent-ipv6: 522038339 dns-tcp-responses-sent-ipv4: 28360111 dns-tcp-responses-sent-ipv6: 1186750