--- service: j.root-servers.net start-period: '2015-02-12T00:00:00Z' end-period: '2015-02-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3286067062 dns-udp-queries-received-ipv6: 293242059 dns-tcp-queries-received-ipv4: 27873378 dns-tcp-queries-received-ipv6: 4778326 dns-udp-responses-sent-ipv4: 3294007354 dns-udp-responses-sent-ipv6: 293339435 dns-tcp-responses-sent-ipv4: 27741051 dns-tcp-responses-sent-ipv6: 3387097