--- service: a.root-servers.net start-period: '2013-11-16T00:00:00Z' end-period: '2013-11-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1359281885 dns-udp-queries-received-ipv6: 89954501 dns-tcp-queries-received-ipv4: 6397441 dns-tcp-queries-received-ipv6: 1360339 dns-udp-responses-sent-ipv4: 1357734298 dns-udp-responses-sent-ipv6: 89969900 dns-tcp-responses-sent-ipv4: 6785187 dns-tcp-responses-sent-ipv6: 94831