--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6809261093 dns-udp-queries-received-ipv6: 1200064465 dns-tcp-queries-received-ipv4: 326248875 dns-tcp-queries-received-ipv6: 181086690 dns-udp-responses-sent-ipv4: 6461940976 dns-udp-responses-sent-ipv6: 1062975365 dns-tcp-responses-sent-ipv4: 290239052 dns-tcp-responses-sent-ipv6: 110725378