--- version: rssac002v3 service: j.root-servers.net start-period: '2021-04-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6140473265 dns-udp-queries-received-ipv6: 1375149315 dns-tcp-queries-received-ipv4: 498470702 dns-tcp-queries-received-ipv6: 92080661 dns-udp-responses-sent-ipv4: 5730232701 dns-udp-responses-sent-ipv6: 1368484040 dns-tcp-responses-sent-ipv4: 352550818 dns-tcp-responses-sent-ipv6: 91801530