--- service: a.root-servers.net start-period: '2013-11-07T00:00:00Z' end-period: '2013-11-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1627955016 dns-udp-queries-received-ipv6: 91820901 dns-tcp-queries-received-ipv4: 8083952 dns-tcp-queries-received-ipv6: 1481382 dns-udp-responses-sent-ipv4: 1627549909 dns-udp-responses-sent-ipv6: 91833479 dns-tcp-responses-sent-ipv4: 8565427 dns-tcp-responses-sent-ipv6: 14036