--- service: j.root-servers.net start-period: '2013-10-19T00:00:00Z' end-period: '2013-10-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2100521868 dns-udp-queries-received-ipv6: 137751008 dns-tcp-queries-received-ipv4: 19507325 dns-tcp-queries-received-ipv6: 3649729 dns-udp-responses-sent-ipv4: 2093610800 dns-udp-responses-sent-ipv6: 137710140 dns-tcp-responses-sent-ipv4: 18332237 dns-tcp-responses-sent-ipv6: 82696