--- service: m.root-servers.net start-period: '2016-04-03T00:00:00Z' end-period: '2016-04-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2603901005 dns-udp-queries-received-ipv6: 224031813 dns-udp-responses-sent-ipv4: 2324225972 dns-udp-responses-sent-ipv6: 223895662 dns-tcp-queries-received-ipv4: 59684451 dns-tcp-queries-received-ipv6: 522847 dns-tcp-responses-sent-ipv4: 39610458 dns-tcp-responses-sent-ipv6: 408576