--- service: j.root-servers.net start-period: '2015-12-27T00:00:00Z' end-period: '2015-12-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3199820387 dns-udp-queries-received-ipv6: 527370499 dns-tcp-queries-received-ipv4: 61005888 dns-tcp-queries-received-ipv6: 1625734 dns-udp-responses-sent-ipv4: 3155641578 dns-udp-responses-sent-ipv6: 530503428 dns-tcp-responses-sent-ipv4: 53673472 dns-tcp-responses-sent-ipv6: 269890