--- service: a.root-servers.net start-period: '2014-03-07T00:00:00Z' end-period: '2014-03-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2183842929 dns-udp-queries-received-ipv6: 87951957 dns-tcp-queries-received-ipv4: 10476125 dns-tcp-queries-received-ipv6: 1197505 dns-udp-responses-sent-ipv4: 2159379039 dns-udp-responses-sent-ipv6: 87936093 dns-tcp-responses-sent-ipv4: 10520513 dns-tcp-responses-sent-ipv6: 125