--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5216002239 dns-udp-queries-received-ipv6: 1029279863 dns-tcp-queries-received-ipv4: 267903108 dns-tcp-queries-received-ipv6: 104858450 dns-udp-responses-sent-ipv4: 5069662167 dns-udp-responses-sent-ipv6: 1027261060 dns-tcp-responses-sent-ipv4: 257475228 dns-tcp-responses-sent-ipv6: 105114511