--- service: h.root-servers.net metric: traffic-volume start-period: '2015-04-13T00:00:00Z' end-period: '2015-04-13T23:59:59Z' dns-udp-queries-received-ipv4: 827833207 dns-udp-queries-received-ipv6: 72984990 dns-tcp-queries-received-ipv4: 210212 dns-tcp-queries-received-ipv6: 49293 dns-udp-responses-sent-ipv4: 787742858 dns-udp-responses-sent-ipv6: 68437924 dns-tcp-responses-sent-ipv4: 62421 dns-tcp-responses-sent-ipv6: 35163