--- service: a.root-servers.net start-period: '2014-04-14T00:00:00Z' end-period: '2014-04-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2799489483 dns-udp-queries-received-ipv6: 91592877 dns-tcp-queries-received-ipv4: 13459925 dns-tcp-queries-received-ipv6: 1351346 dns-udp-responses-sent-ipv4: 2799136119 dns-udp-responses-sent-ipv6: 91555779 dns-tcp-responses-sent-ipv4: 13416411 dns-tcp-responses-sent-ipv6: 110