--- service: j.root-servers.net start-period: '2015-06-16T00:00:00Z' end-period: '2015-06-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3265987054 dns-udp-queries-received-ipv6: 247528508 dns-tcp-queries-received-ipv4: 27176628 dns-tcp-queries-received-ipv6: 17222188 dns-udp-responses-sent-ipv4: 3253710261 dns-udp-responses-sent-ipv6: 247408795 dns-tcp-responses-sent-ipv4: 25957198 dns-tcp-responses-sent-ipv6: 16112583