--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6417303103 dns-udp-queries-received-ipv6: 1340368481 dns-tcp-queries-received-ipv4: 554257111 dns-tcp-queries-received-ipv6: 107406295 dns-udp-responses-sent-ipv4: 5911130303 dns-udp-responses-sent-ipv6: 1335395985 dns-tcp-responses-sent-ipv4: 386136504 dns-tcp-responses-sent-ipv6: 107061600