--- version: rssac002v3 service: j.root-servers.net start-period: '2021-04-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6808509662 dns-udp-queries-received-ipv6: 1515092199 dns-tcp-queries-received-ipv4: 540100997 dns-tcp-queries-received-ipv6: 117735229 dns-udp-responses-sent-ipv4: 6346720267 dns-udp-responses-sent-ipv6: 1503291360 dns-tcp-responses-sent-ipv4: 380016645 dns-tcp-responses-sent-ipv6: 115322245