--- service: a.root-servers.net start-period: '2016-06-14T00:00:00Z' end-period: '2016-06-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5428671903 dns-udp-queries-received-ipv6: 423879947 dns-tcp-queries-received-ipv4: 78826868 dns-tcp-queries-received-ipv6: 5956195 dns-udp-responses-sent-ipv4: 5428232553 dns-udp-responses-sent-ipv6: 423540210 dns-tcp-responses-sent-ipv4: 66825909 dns-tcp-responses-sent-ipv6: 320158