--- version: rssac002v3 service: j.root-servers.net start-period: '2021-04-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6181633056 dns-udp-queries-received-ipv6: 1243857680 dns-tcp-queries-received-ipv4: 552622718 dns-tcp-queries-received-ipv6: 96820107 dns-udp-responses-sent-ipv4: 5712070735 dns-udp-responses-sent-ipv6: 1232231574 dns-tcp-responses-sent-ipv4: 385804791 dns-tcp-responses-sent-ipv6: 94039808