--- version: rssac002v3 service: d.root-servers.net start-period: '2019-02-28T00:00:00Z' end-period: '2019-02-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7411608460 dns-udp-queries-received-ipv6: 1654417005 dns-tcp-queries-received-ipv4: 419285035 dns-tcp-queries-received-ipv6: 50178409 dns-udp-responses-sent-ipv4: 7411571437 dns-udp-responses-sent-ipv6: 1654251620 dns-tcp-responses-sent-ipv4: 418461973 dns-tcp-responses-sent-ipv6: 50122816