--- service: a.root-servers.net start-period: '2013-11-26T00:00:00Z' end-period: '2013-11-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1597099555 dns-udp-queries-received-ipv6: 89014238 dns-tcp-queries-received-ipv4: 7959656 dns-tcp-queries-received-ipv6: 1359711 dns-udp-responses-sent-ipv4: 1595836667 dns-udp-responses-sent-ipv6: 89018803 dns-tcp-responses-sent-ipv4: 8480879 dns-tcp-responses-sent-ipv6: 187