--- service: i.root-servers.net start-period: '2015-10-27T00:00:00Z' end-period: '2015-10-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4483588563 dns-udp-queries-received-ipv6: 345345292 dns-tcp-queries-received-ipv4: 19023392 dns-tcp-queries-received-ipv6: 557060 dns-udp-responses-sent-ipv4: 4428124447 dns-udp-responses-sent-ipv6: 345296254 dns-tcp-responses-sent-ipv4: 19133654 dns-tcp-responses-sent-ipv6: 566247