--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7714696324 dns-udp-queries-received-ipv6: 1253213176 dns-tcp-queries-received-ipv4: 667572041 dns-tcp-queries-received-ipv6: 69842011 dns-udp-responses-sent-ipv4: 7053086588 dns-udp-responses-sent-ipv6: 1211937512 dns-tcp-responses-sent-ipv4: 470182331 dns-tcp-responses-sent-ipv6: 51056271