--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6329607674 dns-udp-queries-received-ipv6: 848975802 dns-tcp-queries-received-ipv4: 338006171 dns-tcp-queries-received-ipv6: 84075670 dns-udp-responses-sent-ipv4: 6033802819 dns-udp-responses-sent-ipv6: 802610553 dns-tcp-responses-sent-ipv4: 235067266 dns-tcp-responses-sent-ipv6: 60319285