--- service: a.root-servers.net start-period: '2016-12-06T00:00:00Z' end-period: '2016-12-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5527818049 dns-udp-queries-received-ipv6: 489520095 dns-tcp-queries-received-ipv4: 239804158 dns-tcp-queries-received-ipv6: 9421558 dns-udp-responses-sent-ipv4: 5512542121 dns-udp-responses-sent-ipv6: 488694461 dns-tcp-responses-sent-ipv4: 240752731 dns-tcp-responses-sent-ipv6: 9385903