--- version: rssac002v3 service: j.root-servers.net start-period: '2020-12-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6088927918 dns-udp-queries-received-ipv6: 1393990786 dns-tcp-queries-received-ipv4: 557129470 dns-tcp-queries-received-ipv6: 126568263 dns-udp-responses-sent-ipv4: 5577760102 dns-udp-responses-sent-ipv6: 1384836142 dns-tcp-responses-sent-ipv4: 400760734 dns-tcp-responses-sent-ipv6: 124378782