--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6950222429 dns-udp-queries-received-ipv6: 1203759206 dns-tcp-queries-received-ipv4: 332055726 dns-tcp-queries-received-ipv6: 179182702 dns-udp-responses-sent-ipv4: 6639622257 dns-udp-responses-sent-ipv6: 1071219423 dns-tcp-responses-sent-ipv4: 296952472 dns-tcp-responses-sent-ipv6: 111052081