--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6957150471 dns-udp-queries-received-ipv6: 1410857556 dns-tcp-queries-received-ipv4: 648387344 dns-tcp-queries-received-ipv6: 100990893 dns-udp-responses-sent-ipv4: 6389386261 dns-udp-responses-sent-ipv6: 1399055002 dns-tcp-responses-sent-ipv4: 448099723 dns-tcp-responses-sent-ipv6: 97142330