--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6667543052 dns-udp-queries-received-ipv6: 909324207 dns-tcp-queries-received-ipv4: 328844236 dns-tcp-queries-received-ipv6: 89622665 dns-udp-responses-sent-ipv4: 6371911442 dns-udp-responses-sent-ipv6: 860684748 dns-tcp-responses-sent-ipv4: 231624604 dns-tcp-responses-sent-ipv6: 62912108