--- service: j.root-servers.net start-period: '2015-02-15T00:00:00Z' end-period: '2015-02-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2923955037 dns-udp-queries-received-ipv6: 276050235 dns-tcp-queries-received-ipv4: 24876592 dns-tcp-queries-received-ipv6: 4062980 dns-udp-responses-sent-ipv4: 2933464759 dns-udp-responses-sent-ipv6: 276145738 dns-tcp-responses-sent-ipv4: 24777020 dns-tcp-responses-sent-ipv6: 3406584