--- service: d.root-servers.net start-period: '2016-04-08T00:00:00Z' end-period: '2016-04-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4645855611 dns-udp-queries-received-ipv6: 595612621 dns-tcp-queries-received-ipv4: 38329227 dns-tcp-queries-received-ipv6: 564752 dns-udp-responses-sent-ipv4: 4628602166 dns-udp-responses-sent-ipv6: 595347737 dns-tcp-responses-sent-ipv4: 38280367 dns-tcp-responses-sent-ipv6: 564723