--- service: j.root-servers.net start-period: '2015-07-06T00:00:00Z' end-period: '2015-07-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3074461971 dns-udp-queries-received-ipv6: 256469917 dns-tcp-queries-received-ipv4: 33827305 dns-tcp-queries-received-ipv6: 20446889 dns-udp-responses-sent-ipv4: 3002244097 dns-udp-responses-sent-ipv6: 256362653 dns-tcp-responses-sent-ipv4: 33034626 dns-tcp-responses-sent-ipv6: 18752954