--- version: rssac002v3 service: j.root-servers.net start-period: '2018-09-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6142520301 dns-udp-queries-received-ipv6: 638804231 dns-tcp-queries-received-ipv4: 320967560 dns-tcp-queries-received-ipv6: 24556548 dns-udp-responses-sent-ipv4: 5767254126 dns-udp-responses-sent-ipv6: 633689159 dns-tcp-responses-sent-ipv4: 230686229 dns-tcp-responses-sent-ipv6: 24422270