--- service: j.root-servers.net start-period: '2015-02-16T00:00:00Z' end-period: '2015-02-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2993580949 dns-udp-queries-received-ipv6: 291518919 dns-tcp-queries-received-ipv4: 26598828 dns-tcp-queries-received-ipv6: 4137819 dns-udp-responses-sent-ipv4: 2989531880 dns-udp-responses-sent-ipv6: 291580804 dns-tcp-responses-sent-ipv4: 26273485 dns-tcp-responses-sent-ipv6: 3414659