--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6608421921 dns-udp-queries-received-ipv6: 1142617912 dns-tcp-queries-received-ipv4: 329165233 dns-tcp-queries-received-ipv6: 177807420 dns-udp-responses-sent-ipv4: 6297711108 dns-udp-responses-sent-ipv6: 1008946245 dns-tcp-responses-sent-ipv4: 294059292 dns-tcp-responses-sent-ipv6: 109418487