--- service: i.root-servers.net start-period: '2014-11-18T00:00:00Z' end-period: '2014-11-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3283358076 dns-udp-queries-received-ipv6: 228062114 dns-tcp-queries-received-ipv4: 6562393 dns-tcp-queries-received-ipv6: 197504 dns-udp-responses-sent-ipv4: 3230817341 dns-udp-responses-sent-ipv6: 227977620 dns-tcp-responses-sent-ipv4: 6651484 dns-tcp-responses-sent-ipv6: 197141