--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6378844458 dns-udp-queries-received-ipv6: 1336130671 dns-tcp-queries-received-ipv4: 557894105 dns-tcp-queries-received-ipv6: 102565457 dns-udp-responses-sent-ipv4: 5881209786 dns-udp-responses-sent-ipv6: 1331564598 dns-tcp-responses-sent-ipv4: 390625302 dns-tcp-responses-sent-ipv6: 101913090