--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8163020161 dns-udp-queries-received-ipv6: 1325874099 dns-tcp-queries-received-ipv4: 704831538 dns-tcp-queries-received-ipv6: 81062933 dns-udp-responses-sent-ipv4: 7550054467 dns-udp-responses-sent-ipv6: 1277702618 dns-tcp-responses-sent-ipv4: 503595613 dns-tcp-responses-sent-ipv6: 57673505