--- service: a.root-servers.net start-period: '2016-08-12T00:00:00Z' end-period: '2016-08-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3521925545 dns-udp-queries-received-ipv6: 525439149 dns-tcp-queries-received-ipv4: 51130265 dns-tcp-queries-received-ipv6: 5831956 dns-udp-responses-sent-ipv4: 3520099188 dns-udp-responses-sent-ipv6: 525349308 dns-tcp-responses-sent-ipv4: 50072218 dns-tcp-responses-sent-ipv6: 4220828