--- service: j.root-servers.net start-period: '2016-03-23T00:00:00Z' end-period: '2016-03-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6388096855 dns-udp-queries-received-ipv6: 748133088 dns-tcp-queries-received-ipv4: 182620463 dns-tcp-queries-received-ipv6: 2962859 dns-udp-responses-sent-ipv4: 6084193017 dns-udp-responses-sent-ipv6: 746024302 dns-tcp-responses-sent-ipv4: 160702174 dns-tcp-responses-sent-ipv6: 315451