--- version: rssac002v3 service: j.root-servers.net start-period: '2021-02-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6302501678 dns-udp-queries-received-ipv6: 1280782379 dns-tcp-queries-received-ipv4: 572543603 dns-tcp-queries-received-ipv6: 88171850 dns-udp-responses-sent-ipv4: 5788385606 dns-udp-responses-sent-ipv6: 1275409235 dns-tcp-responses-sent-ipv4: 388881364 dns-tcp-responses-sent-ipv6: 88071640