--- service: j.root-servers.net start-period: '2014-06-18T00:00:00Z' end-period: '2014-06-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4544968140 dns-udp-queries-received-ipv6: 205553340 dns-tcp-queries-received-ipv4: 40388757 dns-tcp-queries-received-ipv6: 5183038 dns-udp-responses-sent-ipv4: 4569085455 dns-udp-responses-sent-ipv6: 205388864 dns-tcp-responses-sent-ipv4: 40847005 dns-tcp-responses-sent-ipv6: 2791814