--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8200687018 dns-udp-queries-received-ipv6: 1433579022 dns-tcp-queries-received-ipv4: 768109915 dns-tcp-queries-received-ipv6: 76846255 dns-udp-responses-sent-ipv4: 7550597841 dns-udp-responses-sent-ipv6: 1389545671 dns-tcp-responses-sent-ipv4: 545252316 dns-tcp-responses-sent-ipv6: 55835905