--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6305193688 dns-udp-queries-received-ipv6: 791620172 dns-tcp-queries-received-ipv4: 438490993 dns-tcp-queries-received-ipv6: 64822014 dns-udp-responses-sent-ipv4: 5818449129 dns-udp-responses-sent-ipv6: 750748011 dns-tcp-responses-sent-ipv4: 275725547 dns-tcp-responses-sent-ipv6: 43667266