--- service: j.root-servers.net start-period: '2015-09-27T00:00:00Z' end-period: '2015-09-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3421542168 dns-udp-queries-received-ipv6: 526396793 dns-tcp-queries-received-ipv4: 59645828 dns-tcp-queries-received-ipv6: 24577102 dns-udp-responses-sent-ipv4: 3401899428 dns-udp-responses-sent-ipv6: 525022307 dns-tcp-responses-sent-ipv4: 57936573 dns-tcp-responses-sent-ipv6: 22972611