--- service: d.root-servers.net start-period: '2016-04-17T00:00:00Z' end-period: '2016-04-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3764499828 dns-udp-queries-received-ipv6: 596453115 dns-tcp-queries-received-ipv4: 29990438 dns-tcp-queries-received-ipv6: 534555 dns-udp-responses-sent-ipv4: 3750767617 dns-udp-responses-sent-ipv6: 596197923 dns-tcp-responses-sent-ipv4: 29968678 dns-tcp-responses-sent-ipv6: 534457