--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5870806188 dns-udp-queries-received-ipv6: 1233684434 dns-tcp-queries-received-ipv4: 504628237 dns-tcp-queries-received-ipv6: 92766252 dns-udp-responses-sent-ipv4: 5444947597 dns-udp-responses-sent-ipv6: 1209253924 dns-tcp-responses-sent-ipv4: 366302276 dns-tcp-responses-sent-ipv6: 92174533