--- version: rssac002v3 service: j.root-servers.net start-period: '2021-04-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6133271842 dns-udp-queries-received-ipv6: 1235745698 dns-tcp-queries-received-ipv4: 538951980 dns-tcp-queries-received-ipv6: 86908295 dns-udp-responses-sent-ipv4: 5683441247 dns-udp-responses-sent-ipv6: 1224719519 dns-tcp-responses-sent-ipv4: 377356973 dns-tcp-responses-sent-ipv6: 84585247