--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5753301826 dns-udp-queries-received-ipv6: 1170763776 dns-tcp-queries-received-ipv4: 519010447 dns-tcp-queries-received-ipv6: 87725639 dns-udp-responses-sent-ipv4: 5313035541 dns-udp-responses-sent-ipv6: 1166171819 dns-tcp-responses-sent-ipv4: 361655732 dns-tcp-responses-sent-ipv6: 87715038