--- service: a.root-servers.net start-period: '2014-04-08T00:00:00Z' end-period: '2014-04-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2514940026 dns-udp-queries-received-ipv6: 91668328 dns-tcp-queries-received-ipv4: 11920264 dns-tcp-queries-received-ipv6: 878307 dns-udp-responses-sent-ipv4: 2514362350 dns-udp-responses-sent-ipv6: 91646272 dns-tcp-responses-sent-ipv4: 11941751 dns-tcp-responses-sent-ipv6: 113