--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6960846767 dns-udp-queries-received-ipv6: 1253640596 dns-tcp-queries-received-ipv4: 495023663 dns-tcp-queries-received-ipv6: 112072586 dns-udp-responses-sent-ipv4: 6598003622 dns-udp-responses-sent-ipv6: 1179885771 dns-tcp-responses-sent-ipv4: 366646568 dns-tcp-responses-sent-ipv6: 76301036