--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6452130600 dns-udp-queries-received-ipv6: 1345335398 dns-tcp-queries-received-ipv4: 541944185 dns-tcp-queries-received-ipv6: 101418603 dns-udp-responses-sent-ipv4: 5972898993 dns-udp-responses-sent-ipv6: 1337054107 dns-tcp-responses-sent-ipv4: 378350203 dns-tcp-responses-sent-ipv6: 100144150