--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-12-30T00:00:00Z dns-udp-queries-received-ipv4: 3032144047 dns-udp-queries-received-ipv6: 676061892 dns-tcp-queries-received-ipv4: 58580985 dns-tcp-queries-received-ipv6: 27439884 dns-udp-responses-sent-ipv4: 3028777959 dns-udp-responses-sent-ipv6: 675871129 dns-tcp-responses-sent-ipv4: 60241544 dns-tcp-responses-sent-ipv6: 28540864