--- version: rssac002v3 service: j.root-servers.net start-period: '2021-03-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6450141958 dns-udp-queries-received-ipv6: 1270609091 dns-tcp-queries-received-ipv4: 578216959 dns-tcp-queries-received-ipv6: 110964326 dns-udp-responses-sent-ipv4: 5935326889 dns-udp-responses-sent-ipv6: 1258703135 dns-tcp-responses-sent-ipv4: 398398729 dns-tcp-responses-sent-ipv6: 107169654