--- service: h.root-servers.net metric: traffic-volume start-period: '2016-01-01T00:00:00Z' end-period: '2016-01-01T23:59:59Z' dns-udp-queries-received-ipv4: 2507583175 dns-udp-queries-received-ipv6: 234686727 dns-tcp-queries-received-ipv4: 454208 dns-tcp-queries-received-ipv6: 393218 dns-udp-responses-sent-ipv4: 2368809227 dns-udp-responses-sent-ipv6: 234360496 dns-tcp-responses-sent-ipv4: 281763 dns-tcp-responses-sent-ipv6: 361651