--- service: a.root-servers.net start-period: '2013-10-09T00:00:00Z' end-period: '2013-10-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1860935104 dns-udp-queries-received-ipv6: 97252121 dns-tcp-queries-received-ipv4: 8540875 dns-tcp-queries-received-ipv6: 1216341 dns-udp-responses-sent-ipv4: 1858500136 dns-udp-responses-sent-ipv6: 97193051 dns-tcp-responses-sent-ipv4: 8973903 dns-tcp-responses-sent-ipv6: 19425