--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6855579394 dns-udp-queries-received-ipv6: 1465310771 dns-tcp-queries-received-ipv4: 570499463 dns-tcp-queries-received-ipv6: 108941633 dns-udp-responses-sent-ipv4: 6356639171 dns-udp-responses-sent-ipv6: 1451384414 dns-tcp-responses-sent-ipv4: 413321667 dns-tcp-responses-sent-ipv6: 104664880