--- service: a.root-servers.net start-period: '2013-10-07T00:00:00Z' end-period: '2013-10-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1710988132 dns-udp-queries-received-ipv6: 104642514 dns-tcp-queries-received-ipv4: 8410266 dns-tcp-queries-received-ipv6: 1299338 dns-udp-responses-sent-ipv4: 1710572089 dns-udp-responses-sent-ipv6: 104647703 dns-tcp-responses-sent-ipv4: 9139985 dns-tcp-responses-sent-ipv6: 20743