--- service: j.root-servers.net start-period: '2015-01-17T00:00:00Z' end-period: '2015-01-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2969227856 dns-udp-queries-received-ipv6: 239842819 dns-tcp-queries-received-ipv4: 28673248 dns-tcp-queries-received-ipv6: 5489947 dns-udp-responses-sent-ipv4: 2963314348 dns-udp-responses-sent-ipv6: 239887342 dns-tcp-responses-sent-ipv4: 28747681 dns-tcp-responses-sent-ipv6: 4815244