--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5894965713 dns-udp-queries-received-ipv6: 1177432378 dns-tcp-queries-received-ipv4: 563392842 dns-tcp-queries-received-ipv6: 103186604 dns-udp-responses-sent-ipv4: 5429651485 dns-udp-responses-sent-ipv6: 1174782951 dns-tcp-responses-sent-ipv4: 395841598 dns-tcp-responses-sent-ipv6: 103214853