--- version: rssac002v3 service: j.root-servers.net start-period: '2021-04-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6106918585 dns-udp-queries-received-ipv6: 1454523018 dns-tcp-queries-received-ipv4: 399780052 dns-tcp-queries-received-ipv6: 117659026 dns-udp-responses-sent-ipv4: 5771150804 dns-udp-responses-sent-ipv6: 1443640356 dns-tcp-responses-sent-ipv4: 305720453 dns-tcp-responses-sent-ipv6: 114949397