--- service: d.root-servers.net start-period: '2015-11-29T00:00:00Z' end-period: '2015-11-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3633646798 dns-udp-queries-received-ipv6: 380482287 dns-tcp-queries-received-ipv4: 19368559 dns-tcp-queries-received-ipv6: 512571 dns-udp-responses-sent-ipv4: 3619399704 dns-udp-responses-sent-ipv6: 380227046 dns-tcp-responses-sent-ipv4: 19182584 dns-tcp-responses-sent-ipv6: 512330