--- service: a.root-servers.net start-period: '2014-04-23T00:00:00Z' end-period: '2014-04-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2482530541 dns-udp-queries-received-ipv6: 96003555 dns-tcp-queries-received-ipv4: 12651223 dns-tcp-queries-received-ipv6: 1323067 dns-udp-responses-sent-ipv4: 2481813017 dns-udp-responses-sent-ipv6: 95681210 dns-tcp-responses-sent-ipv4: 12669364 dns-tcp-responses-sent-ipv6: 120