--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6758021460 dns-udp-queries-received-ipv6: 949183187 dns-tcp-queries-received-ipv4: 576558058 dns-tcp-queries-received-ipv6: 102662157 dns-udp-responses-sent-ipv4: 6307156663 dns-udp-responses-sent-ipv6: 880430810 dns-tcp-responses-sent-ipv4: 404218530 dns-tcp-responses-sent-ipv6: 70050437