--- service: a.root-servers.net start-period: '2014-07-06T00:00:00Z' end-period: '2014-07-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1874932842 dns-udp-queries-received-ipv6: 100708151 dns-tcp-queries-received-ipv4: 12423294 dns-tcp-queries-received-ipv6: 718746 dns-udp-responses-sent-ipv4: 1874874316 dns-udp-responses-sent-ipv6: 100704550 dns-tcp-responses-sent-ipv4: 12461524 dns-tcp-responses-sent-ipv6: 498093