--- service: j.root-servers.net start-period: '2015-10-21T00:00:00Z' end-period: '2015-10-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4357723950 dns-udp-queries-received-ipv6: 8517811 dns-tcp-queries-received-ipv4: 77560409 dns-tcp-queries-received-ipv6: 6476548 dns-udp-responses-sent-ipv4: 4209436793 dns-udp-responses-sent-ipv6: 8083314 dns-tcp-responses-sent-ipv4: 72567766 dns-tcp-responses-sent-ipv6: 6867022