--- version: rssac002v3 service: j.root-servers.net start-period: '2021-02-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6366012076 dns-udp-queries-received-ipv6: 1269718629 dns-tcp-queries-received-ipv4: 623584784 dns-tcp-queries-received-ipv6: 117273220 dns-udp-responses-sent-ipv4: 5798644981 dns-udp-responses-sent-ipv6: 1241115891 dns-tcp-responses-sent-ipv4: 421495151 dns-tcp-responses-sent-ipv6: 108128455