--- version: rssac002v4 service: j.root-servers.net start-period: '2022-04-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6036832344 dns-udp-queries-received-ipv6: 1383975608 dns-tcp-queries-received-ipv4: 405469367 dns-tcp-queries-received-ipv6: 49158792 dns-udp-responses-sent-ipv4: 5627046611 dns-udp-responses-sent-ipv6: 1370096588 dns-tcp-responses-sent-ipv4: 278212863 dns-tcp-responses-sent-ipv6: 48926221