--- version: rssac002v3 service: j.root-servers.net start-period: '2021-02-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6911161947 dns-udp-queries-received-ipv6: 1464795076 dns-tcp-queries-received-ipv4: 620314811 dns-tcp-queries-received-ipv6: 106129986 dns-udp-responses-sent-ipv4: 6338830829 dns-udp-responses-sent-ipv6: 1455275830 dns-tcp-responses-sent-ipv4: 418868783 dns-tcp-responses-sent-ipv6: 102955221