--- service: a.root-servers.net start-period: '2014-11-27T00:00:00Z' end-period: '2014-11-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2789791021 dns-udp-queries-received-ipv6: 193580484 dns-tcp-queries-received-ipv4: 18350110 dns-tcp-queries-received-ipv6: 2335564 dns-udp-responses-sent-ipv4: 2789154774 dns-udp-responses-sent-ipv6: 193529992 dns-tcp-responses-sent-ipv4: 17020022 dns-tcp-responses-sent-ipv6: 1588093