--- service: a.root-servers.net start-period: '2014-05-14T00:00:00Z' end-period: '2014-05-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2332293494 dns-udp-queries-received-ipv6: 90669232 dns-tcp-queries-received-ipv4: 11986144 dns-tcp-queries-received-ipv6: 748338 dns-udp-responses-sent-ipv4: 2331631394 dns-udp-responses-sent-ipv6: 90635441 dns-tcp-responses-sent-ipv4: 11954311 dns-tcp-responses-sent-ipv6: 87