--- service: a.root-servers.net start-period: '2013-11-12T00:00:00Z' end-period: '2013-11-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1650938797 dns-udp-queries-received-ipv6: 91369877 dns-tcp-queries-received-ipv4: 7883804 dns-tcp-queries-received-ipv6: 2198446 dns-udp-responses-sent-ipv4: 1642378681 dns-udp-responses-sent-ipv6: 91382187 dns-tcp-responses-sent-ipv4: 8317734 dns-tcp-responses-sent-ipv6: 8402