--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6537828513 dns-udp-queries-received-ipv6: 1128454451 dns-tcp-queries-received-ipv4: 343531502 dns-tcp-queries-received-ipv6: 159358419 dns-udp-responses-sent-ipv4: 6263416159 dns-udp-responses-sent-ipv6: 1006780892 dns-tcp-responses-sent-ipv4: 304520355 dns-tcp-responses-sent-ipv6: 97124833