--- service: j.root-servers.net start-period: '2013-10-15T00:00:00Z' end-period: '2013-10-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1951528020 dns-udp-queries-received-ipv6: 142817633 dns-tcp-queries-received-ipv4: 18076925 dns-tcp-queries-received-ipv6: 3563799 dns-udp-responses-sent-ipv4: 1943278176 dns-udp-responses-sent-ipv6: 142776025 dns-tcp-responses-sent-ipv4: 19062324 dns-tcp-responses-sent-ipv6: 84012