--- service: d.root-servers.net start-period: '2016-05-27T00:00:00Z' end-period: '2016-05-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4899738893 dns-udp-queries-received-ipv6: 736413920 dns-tcp-queries-received-ipv4: 34118425 dns-tcp-queries-received-ipv6: 703050 dns-udp-responses-sent-ipv4: 4881380240 dns-udp-responses-sent-ipv6: 736203835 dns-tcp-responses-sent-ipv4: 34091418 dns-tcp-responses-sent-ipv6: 703010