--- version: rssac002v3 service: d.root-servers.net start-period: '2018-06-21T00:00:00Z' end-period: '2018-06-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4947390899 dns-udp-queries-received-ipv6: 576549780 dns-tcp-queries-received-ipv4: 183790768 dns-tcp-queries-received-ipv6: 17671241 dns-udp-responses-sent-ipv4: 4948023037 dns-udp-responses-sent-ipv6: 576335655 dns-tcp-responses-sent-ipv4: 183720735 dns-tcp-responses-sent-ipv6: 17669291