--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6423261409 dns-udp-queries-received-ipv6: 813444938 dns-tcp-queries-received-ipv4: 441061673 dns-tcp-queries-received-ipv6: 69036850 dns-udp-responses-sent-ipv4: 5951912955 dns-udp-responses-sent-ipv6: 771673752 dns-tcp-responses-sent-ipv4: 278971231 dns-tcp-responses-sent-ipv6: 45803239