--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7251725181 dns-udp-queries-received-ipv6: 1453677340 dns-tcp-queries-received-ipv4: 643625478 dns-tcp-queries-received-ipv6: 113117312 dns-udp-responses-sent-ipv4: 6676913239 dns-udp-responses-sent-ipv6: 1436311573 dns-tcp-responses-sent-ipv4: 449755847 dns-tcp-responses-sent-ipv6: 107094199