--- service: j.root-servers.net start-period: '2015-02-23T00:00:00Z' end-period: '2015-02-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3216229604 dns-udp-queries-received-ipv6: 314791466 dns-tcp-queries-received-ipv4: 26541827 dns-tcp-queries-received-ipv6: 4642544 dns-udp-responses-sent-ipv4: 3211196820 dns-udp-responses-sent-ipv6: 314721568 dns-tcp-responses-sent-ipv4: 26242545 dns-tcp-responses-sent-ipv6: 3504812