--- version: rssac002v4 service: j.root-servers.net start-period: '2021-10-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6101141450 dns-udp-queries-received-ipv6: 1268906365 dns-tcp-queries-received-ipv4: 451494251 dns-tcp-queries-received-ipv6: 82799641 dns-udp-responses-sent-ipv4: 5698977816 dns-udp-responses-sent-ipv6: 1259542193 dns-tcp-responses-sent-ipv4: 320685588 dns-tcp-responses-sent-ipv6: 82002797