--- service: h.root-servers.net metric: traffic-volume start-period: '2015-08-17T00:00:00Z' end-period: '2015-08-17T23:59:59Z' dns-udp-queries-received-ipv4: 2496662069 dns-udp-queries-received-ipv6: 172273409 dns-tcp-queries-received-ipv4: 253006 dns-tcp-queries-received-ipv6: 232676 dns-udp-responses-sent-ipv4: 2016190196 dns-udp-responses-sent-ipv6: 172032015 dns-tcp-responses-sent-ipv4: 96936 dns-tcp-responses-sent-ipv6: 205826