--- version: rssac002v3 service: d.root-servers.net start-period: '2018-04-21T00:00:00Z' end-period: '2018-04-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3549010788 dns-udp-queries-received-ipv6: 561145915 dns-tcp-queries-received-ipv4: 94427475 dns-tcp-queries-received-ipv6: 14503028 dns-udp-responses-sent-ipv4: 3548635457 dns-udp-responses-sent-ipv6: 561102890 dns-tcp-responses-sent-ipv4: 94380740 dns-tcp-responses-sent-ipv6: 14501285