--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7769473294 dns-udp-queries-received-ipv6: 1231370654 dns-tcp-queries-received-ipv4: 675515093 dns-tcp-queries-received-ipv6: 73111460 dns-udp-responses-sent-ipv4: 7147966982 dns-udp-responses-sent-ipv6: 1187117843 dns-tcp-responses-sent-ipv4: 480726059 dns-tcp-responses-sent-ipv6: 52855592