--- service: h.root-servers.net metric: traffic-volume start-period: '2015-12-30T00:00:00Z' end-period: '2015-12-30T23:59:59Z' dns-udp-queries-received-ipv4: 2683693957 dns-udp-queries-received-ipv6: 251693144 dns-tcp-queries-received-ipv4: 509812 dns-tcp-queries-received-ipv6: 341475 dns-udp-responses-sent-ipv4: 2593253090 dns-udp-responses-sent-ipv6: 251369160 dns-tcp-responses-sent-ipv4: 346542 dns-tcp-responses-sent-ipv6: 306636