--- service: a.root-servers.net start-period: '2016-02-25T00:00:00Z' end-period: '2016-02-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5608622425 dns-udp-queries-received-ipv6: 361670265 dns-tcp-queries-received-ipv4: 86610208 dns-tcp-queries-received-ipv6: 3343136 dns-udp-responses-sent-ipv4: 5600322679 dns-udp-responses-sent-ipv6: 361794076 dns-tcp-responses-sent-ipv4: 74388346 dns-tcp-responses-sent-ipv6: 290102