--- version: rssac002v3 service: j.root-servers.net start-period: '2018-04-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4885426852 dns-udp-queries-received-ipv6: 406573284 dns-tcp-queries-received-ipv4: 208413202 dns-tcp-queries-received-ipv6: 18365176 dns-udp-responses-sent-ipv4: 4780260328 dns-udp-responses-sent-ipv6: 403866740 dns-tcp-responses-sent-ipv4: 176784761 dns-tcp-responses-sent-ipv6: 18379825