--- service: j.root-servers.net start-period: '2013-10-20T00:00:00Z' end-period: '2013-10-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2071638872 dns-udp-queries-received-ipv6: 142052036 dns-tcp-queries-received-ipv4: 19024228 dns-tcp-queries-received-ipv6: 3614641 dns-udp-responses-sent-ipv4: 2065185484 dns-udp-responses-sent-ipv6: 142005519 dns-tcp-responses-sent-ipv4: 20203332 dns-tcp-responses-sent-ipv6: 82644