--- version: rssac002v3 service: j.root-servers.net start-period: '2018-05-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5520676000 dns-udp-queries-received-ipv6: 572571230 dns-tcp-queries-received-ipv4: 266185123 dns-tcp-queries-received-ipv6: 19403977 dns-udp-responses-sent-ipv4: 5337426693 dns-udp-responses-sent-ipv6: 561045585 dns-tcp-responses-sent-ipv4: 208664387 dns-tcp-responses-sent-ipv6: 19022174