--- service: d.root-servers.net start-period: '2015-11-23T00:00:00Z' end-period: '2015-11-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3727458877 dns-udp-queries-received-ipv6: 444014408 dns-tcp-queries-received-ipv4: 18793878 dns-tcp-queries-received-ipv6: 440678 dns-udp-responses-sent-ipv4: 3705665691 dns-udp-responses-sent-ipv6: 443732063 dns-tcp-responses-sent-ipv4: 18626970 dns-tcp-responses-sent-ipv6: 440607