--- service: a.root-servers.net start-period: '2014-01-17T00:00:00Z' end-period: '2014-01-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1360301260 dns-udp-queries-received-ipv6: 48654042 dns-tcp-queries-received-ipv4: 7557191 dns-tcp-queries-received-ipv6: 1108838 dns-udp-responses-sent-ipv4: 1359120249 dns-udp-responses-sent-ipv6: 48654347 dns-tcp-responses-sent-ipv4: 7530883 dns-tcp-responses-sent-ipv6: 59