--- service: a.root-servers.net start-period: '2014-09-28T00:00:00Z' end-period: '2014-09-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2154912891 dns-udp-queries-received-ipv6: 191736864 dns-tcp-queries-received-ipv4: 14086673 dns-tcp-queries-received-ipv6: 1834213 dns-udp-responses-sent-ipv4: 2148770919 dns-udp-responses-sent-ipv6: 150963147 dns-tcp-responses-sent-ipv4: 13315945 dns-tcp-responses-sent-ipv6: 1097052