--- service: d.root-servers.net start-period: '2016-03-04T00:00:00Z' end-period: '2016-03-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4153359099 dns-udp-queries-received-ipv6: 498617412 dns-tcp-queries-received-ipv4: 27221357 dns-tcp-queries-received-ipv6: 1028414 dns-udp-responses-sent-ipv4: 4132455464 dns-udp-responses-sent-ipv6: 498328659 dns-tcp-responses-sent-ipv4: 27179335 dns-tcp-responses-sent-ipv6: 1028342