--- service: a.root-servers.net start-period: '2016-08-09T00:00:00Z' end-period: '2016-08-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3706363693 dns-udp-queries-received-ipv6: 487646990 dns-tcp-queries-received-ipv4: 57721920 dns-tcp-queries-received-ipv6: 5327125 dns-udp-responses-sent-ipv4: 3704421638 dns-udp-responses-sent-ipv6: 487373351 dns-tcp-responses-sent-ipv4: 55089292 dns-tcp-responses-sent-ipv6: 3683815