--- service: a.root-servers.net start-period: '2013-11-03T00:00:00Z' end-period: '2013-11-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1218821380 dns-udp-queries-received-ipv6: 78278980 dns-tcp-queries-received-ipv4: 6408200 dns-tcp-queries-received-ipv6: 1275241 dns-udp-responses-sent-ipv4: 1217074226 dns-udp-responses-sent-ipv6: 78290646 dns-tcp-responses-sent-ipv4: 7089995 dns-tcp-responses-sent-ipv6: 13143