--- service: a.root-servers.net start-period: '2016-09-08T00:00:00Z' end-period: '2016-09-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4863342789 dns-udp-queries-received-ipv6: 477151783 dns-tcp-queries-received-ipv4: 108707598 dns-tcp-queries-received-ipv6: 5973494 dns-udp-responses-sent-ipv4: 4858611646 dns-udp-responses-sent-ipv6: 477022860 dns-tcp-responses-sent-ipv4: 109048383 dns-tcp-responses-sent-ipv6: 4489571