--- service: a.root-servers.net start-period: '2014-03-19T00:00:00Z' end-period: '2014-03-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2363820360 dns-udp-queries-received-ipv6: 91998140 dns-tcp-queries-received-ipv4: 12004592 dns-tcp-queries-received-ipv6: 1200161 dns-udp-responses-sent-ipv4: 2335628710 dns-udp-responses-sent-ipv6: 91968318 dns-tcp-responses-sent-ipv4: 12048942 dns-tcp-responses-sent-ipv6: 110