--- service: j.root-servers.net start-period: '2015-01-11T00:00:00Z' end-period: '2015-01-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2952732343 dns-udp-queries-received-ipv6: 230896582 dns-tcp-queries-received-ipv4: 28603045 dns-tcp-queries-received-ipv6: 5408141 dns-udp-responses-sent-ipv4: 2950595464 dns-udp-responses-sent-ipv6: 230847771 dns-tcp-responses-sent-ipv4: 28644928 dns-tcp-responses-sent-ipv6: 5324278