--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-06-19T00:00:00Z' dns-udp-queries-received-ipv4: 3223951566 dns-udp-queries-received-ipv6: 695919320 dns-tcp-queries-received-ipv4: 75628849 dns-tcp-queries-received-ipv6: 19528489 dns-udp-responses-sent-ipv4: 3183789809 dns-udp-responses-sent-ipv6: 695378907 dns-tcp-responses-sent-ipv4: 65484593 dns-tcp-responses-sent-ipv6: 16627342