--- service: h.root-servers.net metric: traffic-volume start-period: '2015-04-08T00:00:00Z' end-period: '2015-04-08T23:59:59Z' dns-udp-queries-received-ipv4: 734233917 dns-udp-queries-received-ipv6: 65188787 dns-tcp-queries-received-ipv4: 277202 dns-tcp-queries-received-ipv6: 43416 dns-udp-responses-sent-ipv4: 695657762 dns-udp-responses-sent-ipv6: 60886679 dns-tcp-responses-sent-ipv4: 85171 dns-tcp-responses-sent-ipv6: 31534