--- service: j.root-servers.net start-period: '2015-10-20T00:00:00Z' end-period: '2015-10-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4133143727 dns-udp-queries-received-ipv6: 7171906 dns-tcp-queries-received-ipv4: 73645924 dns-tcp-queries-received-ipv6: 5245941 dns-udp-responses-sent-ipv4: 4059116504 dns-udp-responses-sent-ipv6: 6793130 dns-tcp-responses-sent-ipv4: 69689841 dns-tcp-responses-sent-ipv6: 5575182