--- version: rssac002v3 service: j.root-servers.net start-period: '2019-12-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 9509218199 dns-udp-queries-received-ipv6: 1319659934 dns-tcp-queries-received-ipv4: 820491709 dns-tcp-queries-received-ipv6: 120247015 dns-udp-responses-sent-ipv4: 8647457907 dns-udp-responses-sent-ipv6: 1266145250 dns-tcp-responses-sent-ipv4: 564801548 dns-tcp-responses-sent-ipv6: 102267899