--- service: a.root-servers.net start-period: '2015-11-07T00:00:00Z' end-period: '2015-11-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3454588406 dns-udp-queries-received-ipv6: 292299367 dns-tcp-queries-received-ipv4: 20119027 dns-tcp-queries-received-ipv6: 1980733 dns-udp-responses-sent-ipv4: 3463300073 dns-udp-responses-sent-ipv6: 291452650 dns-tcp-responses-sent-ipv4: 18042481 dns-tcp-responses-sent-ipv6: 261874