--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5578631632 dns-udp-queries-received-ipv6: 1186428167 dns-tcp-queries-received-ipv4: 509737240 dns-tcp-queries-received-ipv6: 87774747 dns-udp-responses-sent-ipv4: 5147133984 dns-udp-responses-sent-ipv6: 1181856789 dns-tcp-responses-sent-ipv4: 355076901 dns-tcp-responses-sent-ipv6: 87919580