--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5260489674 dns-udp-queries-received-ipv6: 1108079775 dns-tcp-queries-received-ipv4: 387905090 dns-tcp-queries-received-ipv6: 102785820 dns-udp-responses-sent-ipv4: 4939029816 dns-udp-responses-sent-ipv6: 1098315221 dns-tcp-responses-sent-ipv4: 292341725 dns-tcp-responses-sent-ipv6: 100626579