--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6593202467 dns-udp-queries-received-ipv6: 823718199 dns-tcp-queries-received-ipv4: 421043687 dns-tcp-queries-received-ipv6: 56206144 dns-udp-responses-sent-ipv4: 6136115593 dns-udp-responses-sent-ipv6: 786640748 dns-tcp-responses-sent-ipv4: 277776162 dns-tcp-responses-sent-ipv6: 41692906