--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6713695873 dns-udp-queries-received-ipv6: 1312224371 dns-tcp-queries-received-ipv4: 621143153 dns-tcp-queries-received-ipv6: 95426186 dns-udp-responses-sent-ipv4: 6180584667 dns-udp-responses-sent-ipv6: 1308061325 dns-tcp-responses-sent-ipv4: 431088810 dns-tcp-responses-sent-ipv6: 95239702