--- service: d.root-servers.net start-period: '2015-11-28T00:00:00Z' end-period: '2015-11-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3533426107 dns-udp-queries-received-ipv6: 378436913 dns-tcp-queries-received-ipv4: 18641955 dns-tcp-queries-received-ipv6: 506432 dns-udp-responses-sent-ipv4: 3519458813 dns-udp-responses-sent-ipv6: 378211518 dns-tcp-responses-sent-ipv4: 18428570 dns-tcp-responses-sent-ipv6: 506222