--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6143723709 dns-udp-queries-received-ipv6: 1274754415 dns-tcp-queries-received-ipv4: 539984075 dns-tcp-queries-received-ipv6: 102518189 dns-udp-responses-sent-ipv4: 5675872500 dns-udp-responses-sent-ipv6: 1264134789 dns-tcp-responses-sent-ipv4: 387028738 dns-tcp-responses-sent-ipv6: 99497567