--- service: j.root-servers.net start-period: '2015-01-29T00:00:00Z' end-period: '2015-01-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3104255930 dns-udp-queries-received-ipv6: 282520951 dns-tcp-queries-received-ipv4: 26426286 dns-tcp-queries-received-ipv6: 4468154 dns-udp-responses-sent-ipv4: 3108291156 dns-udp-responses-sent-ipv6: 282100066 dns-tcp-responses-sent-ipv4: 26311043 dns-tcp-responses-sent-ipv6: 3691560