--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5770632375 dns-udp-queries-received-ipv6: 1407004835 dns-tcp-queries-received-ipv4: 395302183 dns-tcp-queries-received-ipv6: 97936807 dns-udp-responses-sent-ipv4: 5442647210 dns-udp-responses-sent-ipv6: 1393108457 dns-tcp-responses-sent-ipv4: 308195115 dns-tcp-responses-sent-ipv6: 96542104