--- service: a.root-servers.net start-period: '2013-11-04T00:00:00Z' end-period: '2013-11-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1413085394 dns-udp-queries-received-ipv6: 86388443 dns-tcp-queries-received-ipv4: 7154580 dns-tcp-queries-received-ipv6: 1382993 dns-udp-responses-sent-ipv4: 1412051229 dns-udp-responses-sent-ipv6: 86400478 dns-tcp-responses-sent-ipv4: 7739672 dns-tcp-responses-sent-ipv6: 11715