--- service: a.root-servers.net start-period: '2016-09-24T00:00:00Z' end-period: '2016-09-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4022252326 dns-udp-queries-received-ipv6: 403150744 dns-tcp-queries-received-ipv4: 103859882 dns-tcp-queries-received-ipv6: 4895926 dns-udp-responses-sent-ipv4: 3994356621 dns-udp-responses-sent-ipv6: 403099023 dns-tcp-responses-sent-ipv4: 105388031 dns-tcp-responses-sent-ipv6: 4950927