--- service: a.root-servers.net start-period: '2016-09-03T00:00:00Z' end-period: '2016-09-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4166036708 dns-udp-queries-received-ipv6: 445408929 dns-tcp-queries-received-ipv4: 105827320 dns-tcp-queries-received-ipv6: 5695291 dns-udp-responses-sent-ipv4: 4163215750 dns-udp-responses-sent-ipv6: 445342284 dns-tcp-responses-sent-ipv4: 105694139 dns-tcp-responses-sent-ipv6: 4145423