--- service: a.root-servers.net start-period: '2016-03-06T00:00:00Z' end-period: '2016-03-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2108465250 dns-udp-queries-received-ipv6: 191423931 dns-tcp-queries-received-ipv4: 15379142 dns-tcp-queries-received-ipv6: 1732765 dns-udp-responses-sent-ipv4: 2104375154 dns-udp-responses-sent-ipv6: 191677242 dns-tcp-responses-sent-ipv4: 13206811 dns-tcp-responses-sent-ipv6: 150017