--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6832612103 dns-udp-queries-received-ipv6: 1324623962 dns-tcp-queries-received-ipv4: 402638739 dns-tcp-queries-received-ipv6: 106436052 dns-udp-responses-sent-ipv4: 6340750731 dns-udp-responses-sent-ipv6: 1248821645 dns-tcp-responses-sent-ipv4: 317654996 dns-tcp-responses-sent-ipv6: 71032969