--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8974491090 dns-udp-queries-received-ipv6: 1975610183 dns-tcp-queries-received-ipv4: 805119855 dns-tcp-queries-received-ipv6: 168790921 dns-udp-responses-sent-ipv4: 8156723111 dns-udp-responses-sent-ipv6: 1925893823 dns-tcp-responses-sent-ipv4: 525405476 dns-tcp-responses-sent-ipv6: 146061546