--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5481162098 dns-udp-queries-received-ipv6: 1445646092 dns-tcp-queries-received-ipv4: 391891714 dns-tcp-queries-received-ipv6: 191233400 dns-udp-responses-sent-ipv4: 5168975488 dns-udp-responses-sent-ipv6: 1440103803 dns-tcp-responses-sent-ipv4: 297741187 dns-tcp-responses-sent-ipv6: 196872829