--- service: h.root-servers.net metric: traffic-volume start-period: '2015-06-11T00:00:00Z' end-period: '2015-06-11T23:59:59Z' dns-udp-queries-received-ipv4: 831983750 dns-udp-queries-received-ipv6: 73014630 dns-tcp-queries-received-ipv4: 123266 dns-tcp-queries-received-ipv6: 40717 dns-udp-responses-sent-ipv4: 772624994 dns-udp-responses-sent-ipv6: 66805012 dns-tcp-responses-sent-ipv4: 44007 dns-tcp-responses-sent-ipv6: 27075