--- version: rssac002v3 service: j.root-servers.net start-period: '2021-03-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6789857907 dns-udp-queries-received-ipv6: 1379982787 dns-tcp-queries-received-ipv4: 542592989 dns-tcp-queries-received-ipv6: 127522845 dns-udp-responses-sent-ipv4: 6296424790 dns-udp-responses-sent-ipv6: 1358685160 dns-tcp-responses-sent-ipv4: 386232149 dns-tcp-responses-sent-ipv6: 119513272