--- service: a.root-servers.net start-period: '2013-10-10T00:00:00Z' end-period: '2013-10-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1774553816 dns-udp-queries-received-ipv6: 95791273 dns-tcp-queries-received-ipv4: 8623900 dns-tcp-queries-received-ipv6: 1171432 dns-udp-responses-sent-ipv4: 1772998195 dns-udp-responses-sent-ipv6: 95714654 dns-tcp-responses-sent-ipv4: 9020827 dns-tcp-responses-sent-ipv6: 19007