--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-06-05T00:00:00Z' dns-udp-queries-received-ipv4: 3244009435 dns-udp-queries-received-ipv6: 695630356 dns-tcp-queries-received-ipv4: 79518857 dns-tcp-queries-received-ipv6: 19207841 dns-udp-responses-sent-ipv4: 3208897474 dns-udp-responses-sent-ipv6: 695204979 dns-tcp-responses-sent-ipv4: 77677723 dns-tcp-responses-sent-ipv6: 18924506