--- service: a.root-servers.net start-period: '2014-03-11T00:00:00Z' end-period: '2014-03-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2196679429 dns-udp-queries-received-ipv6: 89272216 dns-tcp-queries-received-ipv4: 11174464 dns-tcp-queries-received-ipv6: 1238056 dns-udp-responses-sent-ipv4: 2173945541 dns-udp-responses-sent-ipv6: 89248499 dns-tcp-responses-sent-ipv4: 11268187 dns-tcp-responses-sent-ipv6: 117