--- service: a.root-servers.net start-period: '2016-02-08T00:00:00Z' end-period: '2016-02-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4176323388 dns-udp-queries-received-ipv6: 273810400 dns-tcp-queries-received-ipv4: 42892261 dns-tcp-queries-received-ipv6: 1465414 dns-udp-responses-sent-ipv4: 4169235360 dns-udp-responses-sent-ipv6: 274890296 dns-tcp-responses-sent-ipv4: 36377925 dns-tcp-responses-sent-ipv6: 210857