--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6324519552 dns-udp-queries-received-ipv6: 717112995 dns-tcp-queries-received-ipv4: 523833906 dns-tcp-queries-received-ipv6: 37771576 dns-udp-responses-sent-ipv4: 5941095895 dns-udp-responses-sent-ipv6: 714418916 dns-tcp-responses-sent-ipv4: 382338603 dns-tcp-responses-sent-ipv6: 35734667