--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7526900955 dns-udp-queries-received-ipv6: 1143560278 dns-tcp-queries-received-ipv4: 496374730 dns-tcp-queries-received-ipv6: 171161074 dns-udp-responses-sent-ipv4: 7039842402 dns-udp-responses-sent-ipv6: 1014663897 dns-tcp-responses-sent-ipv4: 385914059 dns-tcp-responses-sent-ipv6: 104952081