--- service: h.root-servers.net metric: traffic-volume start-period: '2015-12-19T00:00:00Z' end-period: '2015-12-19T23:59:59Z' dns-udp-queries-received-ipv4: 2618646669 dns-udp-queries-received-ipv6: 244438455 dns-tcp-queries-received-ipv4: 901835 dns-tcp-queries-received-ipv6: 341746 dns-udp-responses-sent-ipv4: 2498587478 dns-udp-responses-sent-ipv6: 244083741 dns-tcp-responses-sent-ipv4: 545766 dns-tcp-responses-sent-ipv6: 305445