--- service: a.root-servers.net start-period: '2014-07-15T00:00:00Z' end-period: '2014-07-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2108911131 dns-udp-queries-received-ipv6: 138161060 dns-tcp-queries-received-ipv4: 20993037 dns-tcp-queries-received-ipv6: 1413635 dns-udp-responses-sent-ipv4: 2108498860 dns-udp-responses-sent-ipv6: 138182968 dns-tcp-responses-sent-ipv4: 21097779 dns-tcp-responses-sent-ipv6: 482563