--- version: rssac002v3 service: j.root-servers.net start-period: '2018-03-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4794343512 dns-udp-queries-received-ipv6: 392831171 dns-tcp-queries-received-ipv4: 162824447 dns-tcp-queries-received-ipv6: 14142949 dns-udp-responses-sent-ipv4: 4653760793 dns-udp-responses-sent-ipv6: 390696756 dns-tcp-responses-sent-ipv4: 134482307 dns-tcp-responses-sent-ipv6: 14184811