--- service: a.root-servers.net start-period: '2016-02-14T00:00:00Z' end-period: '2016-02-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4615987088 dns-udp-queries-received-ipv6: 332361950 dns-tcp-queries-received-ipv4: 69023014 dns-tcp-queries-received-ipv6: 1677480 dns-udp-responses-sent-ipv4: 4607254512 dns-udp-responses-sent-ipv6: 331916220 dns-tcp-responses-sent-ipv4: 60301680 dns-tcp-responses-sent-ipv6: 284770