--- service: a.root-servers.net start-period: '2013-10-03T00:00:00Z' end-period: '2013-10-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1934031723 dns-udp-queries-received-ipv6: 104359302 dns-tcp-queries-received-ipv4: 9802248 dns-tcp-queries-received-ipv6: 1317724 dns-udp-responses-sent-ipv4: 1933138476 dns-udp-responses-sent-ipv6: 104414601 dns-tcp-responses-sent-ipv4: 10402480 dns-tcp-responses-sent-ipv6: 25280