--- version: rssac002v4 service: j.root-servers.net start-period: '2021-12-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5240006448 dns-udp-queries-received-ipv6: 1070412184 dns-tcp-queries-received-ipv4: 322666007 dns-tcp-queries-received-ipv6: 78848565 dns-udp-responses-sent-ipv4: 4926068246 dns-udp-responses-sent-ipv6: 1054459001 dns-tcp-responses-sent-ipv4: 227254829 dns-tcp-responses-sent-ipv6: 76767797