--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7305193406 dns-udp-queries-received-ipv6: 1123143213 dns-tcp-queries-received-ipv4: 599007466 dns-tcp-queries-received-ipv6: 71843143 dns-udp-responses-sent-ipv4: 6764241234 dns-udp-responses-sent-ipv6: 1081219279 dns-tcp-responses-sent-ipv4: 433276400 dns-tcp-responses-sent-ipv6: 52670296