--- service: j.root-servers.net start-period: '2014-09-18T00:00:00Z' end-period: '2014-09-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3776142377 dns-udp-queries-received-ipv6: 242659302 dns-tcp-queries-received-ipv4: 31884094 dns-tcp-queries-received-ipv6: 3292835 dns-udp-responses-sent-ipv4: 3777582084 dns-udp-responses-sent-ipv6: 242337913 dns-tcp-responses-sent-ipv4: 32405724 dns-tcp-responses-sent-ipv6: 2642898