--- version: rssac002v3 service: j.root-servers.net start-period: '2021-04-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7152088601 dns-udp-queries-received-ipv6: 1739019589 dns-tcp-queries-received-ipv4: 534868009 dns-tcp-queries-received-ipv6: 119113141 dns-udp-responses-sent-ipv4: 6702511980 dns-udp-responses-sent-ipv6: 1711891740 dns-tcp-responses-sent-ipv4: 380214863 dns-tcp-responses-sent-ipv6: 109124482