--- version: rssac002v4 service: j.root-servers.net start-period: '2021-12-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5875435874 dns-udp-queries-received-ipv6: 1344594921 dns-tcp-queries-received-ipv4: 354130578 dns-tcp-queries-received-ipv6: 127679719 dns-udp-responses-sent-ipv4: 5537320957 dns-udp-responses-sent-ipv6: 1317196947 dns-tcp-responses-sent-ipv4: 258771052 dns-tcp-responses-sent-ipv6: 123017013