--- service: a.root-servers.net start-period: '2013-11-02T00:00:00Z' end-period: '2013-11-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1243949426 dns-udp-queries-received-ipv6: 78917545 dns-tcp-queries-received-ipv4: 6578990 dns-tcp-queries-received-ipv6: 1353048 dns-udp-responses-sent-ipv4: 1241942148 dns-udp-responses-sent-ipv6: 78929290 dns-tcp-responses-sent-ipv4: 7036764 dns-tcp-responses-sent-ipv6: 13221