--- version: rssac002v3 service: d.root-servers.net start-period: '2018-01-01T00:00:00Z' end-period: '2018-01-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3232720537 dns-udp-queries-received-ipv6: 519259837 dns-tcp-queries-received-ipv4: 82060322 dns-tcp-queries-received-ipv6: 11769414 dns-udp-responses-sent-ipv4: 3231359531 dns-udp-responses-sent-ipv6: 519074537 dns-tcp-responses-sent-ipv4: 81318792 dns-tcp-responses-sent-ipv6: 11767498