--- service: j.root-servers.net start-period: '2015-09-02T00:00:00Z' end-period: '2015-09-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5160320471 dns-udp-queries-received-ipv6: 281776814 dns-tcp-queries-received-ipv4: 72355387 dns-tcp-queries-received-ipv6: 18061099 dns-udp-responses-sent-ipv4: 4011578046 dns-udp-responses-sent-ipv6: 282973808 dns-tcp-responses-sent-ipv4: 70363113 dns-tcp-responses-sent-ipv6: 16104749