--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6560417521 dns-udp-queries-received-ipv6: 876113779 dns-tcp-queries-received-ipv4: 330212049 dns-tcp-queries-received-ipv6: 89505188 dns-udp-responses-sent-ipv4: 6252334358 dns-udp-responses-sent-ipv6: 823797416 dns-tcp-responses-sent-ipv4: 231948103 dns-tcp-responses-sent-ipv6: 59117754