--- version: rssac002v3 service: j.root-servers.net start-period: '2018-06-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5186761903 dns-udp-queries-received-ipv6: 542670025 dns-tcp-queries-received-ipv4: 224414568 dns-tcp-queries-received-ipv6: 19312483 dns-udp-responses-sent-ipv4: 5014514314 dns-udp-responses-sent-ipv6: 538416293 dns-tcp-responses-sent-ipv4: 178868038 dns-tcp-responses-sent-ipv6: 19174235