--- service: a.root-servers.net start-period: '2014-09-25T00:00:00Z' end-period: '2014-09-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2636777751 dns-udp-queries-received-ipv6: 223372528 dns-tcp-queries-received-ipv4: 16709751 dns-tcp-queries-received-ipv6: 1995398 dns-udp-responses-sent-ipv4: 2633531907 dns-udp-responses-sent-ipv6: 173802698 dns-tcp-responses-sent-ipv4: 15713272 dns-tcp-responses-sent-ipv6: 1097232