--- service: a.root-servers.net start-period: '2016-10-12T00:00:00Z' end-period: '2016-10-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4215833509 dns-udp-queries-received-ipv6: 367612767 dns-tcp-queries-received-ipv4: 133480835 dns-tcp-queries-received-ipv6: 6354318 dns-udp-responses-sent-ipv4: 4196312221 dns-udp-responses-sent-ipv6: 367458239 dns-tcp-responses-sent-ipv4: 133876551 dns-tcp-responses-sent-ipv6: 6367306