--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6679838160 dns-udp-queries-received-ipv6: 783500690 dns-tcp-queries-received-ipv4: 431225400 dns-tcp-queries-received-ipv6: 38659855 dns-udp-responses-sent-ipv4: 6293451883 dns-udp-responses-sent-ipv6: 781654783 dns-tcp-responses-sent-ipv4: 340063728 dns-tcp-responses-sent-ipv6: 36735290