--- service: j.root-servers.net start-period: '2015-09-24T00:00:00Z' end-period: '2015-09-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3999308004 dns-udp-queries-received-ipv6: 551103772 dns-tcp-queries-received-ipv4: 66278537 dns-tcp-queries-received-ipv6: 24997834 dns-udp-responses-sent-ipv4: 3932638259 dns-udp-responses-sent-ipv6: 549895016 dns-tcp-responses-sent-ipv4: 64359363 dns-tcp-responses-sent-ipv6: 22995886