--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7385495819 dns-udp-queries-received-ipv6: 1379867291 dns-tcp-queries-received-ipv4: 388018056 dns-tcp-queries-received-ipv6: 103831801 dns-udp-responses-sent-ipv4: 6911747347 dns-udp-responses-sent-ipv6: 1308724535 dns-tcp-responses-sent-ipv4: 311963520 dns-tcp-responses-sent-ipv6: 69824661