--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6734240093 dns-udp-queries-received-ipv6: 856998122 dns-tcp-queries-received-ipv4: 544648068 dns-tcp-queries-received-ipv6: 94717066 dns-udp-responses-sent-ipv4: 6317585608 dns-udp-responses-sent-ipv6: 798274912 dns-tcp-responses-sent-ipv4: 384622180 dns-tcp-responses-sent-ipv6: 66589993