--- service: a.root-servers.net start-period: '2014-04-03T00:00:00Z' end-period: '2014-04-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2393680780 dns-udp-queries-received-ipv6: 89025149 dns-tcp-queries-received-ipv4: 12121350 dns-tcp-queries-received-ipv6: 856552 dns-udp-responses-sent-ipv4: 2391265387 dns-udp-responses-sent-ipv6: 88996264 dns-tcp-responses-sent-ipv4: 12173637 dns-tcp-responses-sent-ipv6: 122