--- version: rssac002v4 service: j.root-servers.net start-period: '2022-04-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5913551749 dns-udp-queries-received-ipv6: 1407944541 dns-tcp-queries-received-ipv4: 390877092 dns-tcp-queries-received-ipv6: 52905288 dns-udp-responses-sent-ipv4: 5502114923 dns-udp-responses-sent-ipv6: 1390478259 dns-tcp-responses-sent-ipv4: 261252736 dns-tcp-responses-sent-ipv6: 52724357