--- version: rssac002v3 service: j.root-servers.net start-period: '2018-04-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4420162752 dns-udp-queries-received-ipv6: 356397468 dns-tcp-queries-received-ipv4: 197505061 dns-tcp-queries-received-ipv6: 15040139 dns-udp-responses-sent-ipv4: 4291283848 dns-udp-responses-sent-ipv6: 354694889 dns-tcp-responses-sent-ipv4: 155331815 dns-tcp-responses-sent-ipv6: 15120384