--- service: a.root-servers.net start-period: '2014-06-16T00:00:00Z' end-period: '2014-06-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1708609130 dns-udp-queries-received-ipv6: 109133160 dns-tcp-queries-received-ipv4: 8713014 dns-tcp-queries-received-ipv6: 1530779 dns-udp-responses-sent-ipv4: 1707765066 dns-udp-responses-sent-ipv6: 108819869 dns-tcp-responses-sent-ipv4: 8777743 dns-tcp-responses-sent-ipv6: 480650