--- service: h.root-servers.net metric: traffic-volume start-period: '2015-12-24T00:00:00Z' end-period: '2015-12-24T23:59:59Z' dns-udp-queries-received-ipv4: 2455463711 dns-udp-queries-received-ipv6: 247689258 dns-tcp-queries-received-ipv4: 418972 dns-tcp-queries-received-ipv6: 316877 dns-udp-responses-sent-ipv4: 2408926767 dns-udp-responses-sent-ipv6: 247333882 dns-tcp-responses-sent-ipv4: 273414 dns-tcp-responses-sent-ipv6: 275677