--- service: j.root-servers.net start-period: '2016-01-07T00:00:00Z' end-period: '2016-01-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3930788505 dns-udp-queries-received-ipv6: 563805855 dns-tcp-queries-received-ipv4: 69142327 dns-tcp-queries-received-ipv6: 1992841 dns-udp-responses-sent-ipv4: 3822810093 dns-udp-responses-sent-ipv6: 567101696 dns-tcp-responses-sent-ipv4: 58775350 dns-tcp-responses-sent-ipv6: 306555