--- service: a.root-servers.net start-period: '2016-04-08T00:00:00Z' end-period: '2016-04-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5502697070 dns-udp-queries-received-ipv6: 341586545 dns-tcp-queries-received-ipv4: 64058376 dns-tcp-queries-received-ipv6: 3361146 dns-udp-responses-sent-ipv4: 5501667652 dns-udp-responses-sent-ipv6: 340797907 dns-tcp-responses-sent-ipv4: 49246818 dns-tcp-responses-sent-ipv6: 277987