--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6665822348 dns-udp-queries-received-ipv6: 1182758512 dns-tcp-queries-received-ipv4: 367589810 dns-tcp-queries-received-ipv6: 165025684 dns-udp-responses-sent-ipv4: 6349608276 dns-udp-responses-sent-ipv6: 1056878234 dns-tcp-responses-sent-ipv4: 305848317 dns-tcp-responses-sent-ipv6: 100512618