--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-05-29T00:00:00Z' dns-udp-queries-received-ipv4: 2798066502 dns-udp-queries-received-ipv6: 549151507 dns-tcp-queries-received-ipv4: 67272870 dns-tcp-queries-received-ipv6: 17210830 dns-udp-responses-sent-ipv4: 2761739150 dns-udp-responses-sent-ipv6: 548371880 dns-tcp-responses-sent-ipv4: 65983842 dns-tcp-responses-sent-ipv6: 17029264