--- service: d.root-servers.net start-period: '2015-10-17T00:00:00Z' end-period: '2015-10-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3023729423 dns-udp-queries-received-ipv6: 402757108 dns-tcp-queries-received-ipv4: 15168807 dns-tcp-queries-received-ipv6: 522993 dns-udp-responses-sent-ipv4: 3007562282 dns-udp-responses-sent-ipv6: 402444386 dns-tcp-responses-sent-ipv4: 15140445 dns-tcp-responses-sent-ipv6: 522851