--- service: j.root-servers.net start-period: '2015-07-17T00:00:00Z' end-period: '2015-07-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3083674054 dns-udp-queries-received-ipv6: 293704371 dns-tcp-queries-received-ipv4: 35459667 dns-tcp-queries-received-ipv6: 23997994 dns-udp-responses-sent-ipv4: 2992093751 dns-udp-responses-sent-ipv6: 293577351 dns-tcp-responses-sent-ipv4: 34547696 dns-tcp-responses-sent-ipv6: 25128488