--- service: a.root-servers.net start-period: '2014-07-22T00:00:00Z' end-period: '2014-07-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1808928848 dns-udp-queries-received-ipv6: 124455188 dns-tcp-queries-received-ipv4: 14918852 dns-tcp-queries-received-ipv6: 1104700 dns-udp-responses-sent-ipv4: 1808872746 dns-udp-responses-sent-ipv6: 124455649 dns-tcp-responses-sent-ipv4: 15019100 dns-tcp-responses-sent-ipv6: 429027