--- service: a.root-servers.net start-period: '2014-12-26T00:00:00Z' end-period: '2014-12-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2428068699 dns-udp-queries-received-ipv6: 180288062 dns-tcp-queries-received-ipv4: 13480693 dns-tcp-queries-received-ipv6: 2361188 dns-udp-responses-sent-ipv4: 2427672786 dns-udp-responses-sent-ipv6: 180254095 dns-tcp-responses-sent-ipv4: 12553139 dns-tcp-responses-sent-ipv6: 1591441