--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6537837588 dns-udp-queries-received-ipv6: 1408202604 dns-tcp-queries-received-ipv4: 542596128 dns-tcp-queries-received-ipv6: 117468622 dns-udp-responses-sent-ipv4: 6055311834 dns-udp-responses-sent-ipv6: 1386493383 dns-tcp-responses-sent-ipv4: 395096692 dns-tcp-responses-sent-ipv6: 109127535