--- version: rssac002v3 service: d.root-servers.net start-period: '2018-04-28T00:00:00Z' end-period: '2018-04-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3531606046 dns-udp-queries-received-ipv6: 621763075 dns-tcp-queries-received-ipv4: 82133076 dns-tcp-queries-received-ipv6: 13053309 dns-udp-responses-sent-ipv4: 3530324440 dns-udp-responses-sent-ipv6: 621684236 dns-tcp-responses-sent-ipv4: 82071367 dns-tcp-responses-sent-ipv6: 13051767