--- service: j.root-servers.net start-period: '2015-02-02T00:00:00Z' end-period: '2015-02-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2900368027 dns-udp-queries-received-ipv6: 299011027 dns-tcp-queries-received-ipv4: 26026808 dns-tcp-queries-received-ipv6: 4607872 dns-udp-responses-sent-ipv4: 2902849955 dns-udp-responses-sent-ipv6: 298874800 dns-tcp-responses-sent-ipv4: 26115696 dns-tcp-responses-sent-ipv6: 3494503