--- service: i.root-servers.net start-period: '2015-11-11T00:00:00Z' end-period: '2015-11-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4676209899 dns-udp-queries-received-ipv6: 327467678 dns-tcp-queries-received-ipv4: 29976631 dns-tcp-queries-received-ipv6: 796563 dns-udp-responses-sent-ipv4: 4598147724 dns-udp-responses-sent-ipv6: 332670503 dns-tcp-responses-sent-ipv4: 30111688 dns-tcp-responses-sent-ipv6: 760511