--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7488130173 dns-udp-queries-received-ipv6: 1237301674 dns-tcp-queries-received-ipv4: 455840915 dns-tcp-queries-received-ipv6: 109580841 dns-udp-responses-sent-ipv4: 7116081632 dns-udp-responses-sent-ipv6: 1160071152 dns-tcp-responses-sent-ipv4: 342740920 dns-tcp-responses-sent-ipv6: 72402079