--- service: a.root-servers.net start-period: '2017-02-24T00:00:00Z' end-period: '2017-02-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4715577029 dns-udp-queries-received-ipv6: 500536285 dns-tcp-queries-received-ipv4: 180562279 dns-tcp-queries-received-ipv6: 8804100 dns-udp-responses-sent-ipv4: 4712991412 dns-udp-responses-sent-ipv6: 500477870 dns-tcp-responses-sent-ipv4: 181020628 dns-tcp-responses-sent-ipv6: 8864923