--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5298337910 dns-udp-queries-received-ipv6: 1216114392 dns-tcp-queries-received-ipv4: 392700115 dns-tcp-queries-received-ipv6: 127337511 dns-udp-responses-sent-ipv4: 4975851184 dns-udp-responses-sent-ipv6: 1203878675 dns-tcp-responses-sent-ipv4: 297870466 dns-tcp-responses-sent-ipv6: 124236540