--- version: rssac002v3 service: d.root-servers.net start-period: '2018-05-31T00:00:00Z' end-period: '2018-05-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4760208114 dns-udp-queries-received-ipv6: 676464061 dns-tcp-queries-received-ipv4: 204223835 dns-tcp-queries-received-ipv6: 15883289 dns-udp-responses-sent-ipv4: 4760958216 dns-udp-responses-sent-ipv6: 676343109 dns-tcp-responses-sent-ipv4: 204184049 dns-tcp-responses-sent-ipv6: 15882364