--- version: rssac002v3 service: d.root-servers.net start-period: '2018-06-30T00:00:00Z' end-period: '2018-06-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4386780022 dns-udp-queries-received-ipv6: 602505830 dns-tcp-queries-received-ipv4: 173093091 dns-tcp-queries-received-ipv6: 16475640 dns-udp-responses-sent-ipv4: 4386342862 dns-udp-responses-sent-ipv6: 602329530 dns-tcp-responses-sent-ipv4: 172686356 dns-tcp-responses-sent-ipv6: 16473632