--- version: rssac002v3 service: j.root-servers.net start-period: '2021-03-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6704625351 dns-udp-queries-received-ipv6: 1363498513 dns-tcp-queries-received-ipv4: 569741220 dns-tcp-queries-received-ipv6: 123001347 dns-udp-responses-sent-ipv4: 6189865693 dns-udp-responses-sent-ipv6: 1343887048 dns-tcp-responses-sent-ipv4: 398472199 dns-tcp-responses-sent-ipv6: 115649548