--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6342840595 dns-udp-queries-received-ipv6: 1120854769 dns-tcp-queries-received-ipv4: 328707381 dns-tcp-queries-received-ipv6: 162104327 dns-udp-responses-sent-ipv4: 6086045889 dns-udp-responses-sent-ipv6: 996936220 dns-tcp-responses-sent-ipv4: 293312808 dns-tcp-responses-sent-ipv6: 98711320