--- version: rssac002v3 service: d.root-servers.net start-period: '2017-12-31T00:00:00Z' end-period: '2017-12-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3331336681 dns-udp-queries-received-ipv6: 515411063 dns-tcp-queries-received-ipv4: 86065247 dns-tcp-queries-received-ipv6: 11878055 dns-udp-responses-sent-ipv4: 3330422710 dns-udp-responses-sent-ipv6: 515228977 dns-tcp-responses-sent-ipv4: 84987282 dns-tcp-responses-sent-ipv6: 11875822