--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7722818800 dns-udp-queries-received-ipv6: 1273018634 dns-tcp-queries-received-ipv4: 470197160 dns-tcp-queries-received-ipv6: 109689883 dns-udp-responses-sent-ipv4: 7330936979 dns-udp-responses-sent-ipv6: 1196809258 dns-tcp-responses-sent-ipv4: 351952799 dns-tcp-responses-sent-ipv6: 73251824