--- version: rssac002v4 service: j.root-servers.net start-period: '2021-12-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5840992243 dns-udp-queries-received-ipv6: 1428841291 dns-tcp-queries-received-ipv4: 397495116 dns-tcp-queries-received-ipv6: 200701141 dns-udp-responses-sent-ipv4: 5489590245 dns-udp-responses-sent-ipv6: 1398951838 dns-tcp-responses-sent-ipv4: 294389356 dns-tcp-responses-sent-ipv6: 173895786