--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7513528308 dns-udp-queries-received-ipv6: 1285481526 dns-tcp-queries-received-ipv4: 472458726 dns-tcp-queries-received-ipv6: 110931678 dns-udp-responses-sent-ipv4: 7153257109 dns-udp-responses-sent-ipv6: 1208738615 dns-tcp-responses-sent-ipv4: 357985046 dns-tcp-responses-sent-ipv6: 74354119