--- service: j.root-servers.net start-period: '2015-05-09T00:00:00Z' end-period: '2015-05-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2919028069 dns-udp-queries-received-ipv6: 236708546 dns-tcp-queries-received-ipv4: 22162071 dns-tcp-queries-received-ipv6: 4679127 dns-udp-responses-sent-ipv4: 2826087619 dns-udp-responses-sent-ipv6: 236626788 dns-tcp-responses-sent-ipv4: 21695153 dns-tcp-responses-sent-ipv6: 3300974