--- version: rssac002v3 service: j.root-servers.net start-period: '2018-06-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5047827169 dns-udp-queries-received-ipv6: 524896721 dns-tcp-queries-received-ipv4: 246379738 dns-tcp-queries-received-ipv6: 18276048 dns-udp-responses-sent-ipv4: 4886056318 dns-udp-responses-sent-ipv6: 518982437 dns-tcp-responses-sent-ipv4: 199570473 dns-tcp-responses-sent-ipv6: 18239645