--- service: j.root-servers.net start-period: '2014-01-18T00:00:00Z' end-period: '2014-01-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2628976849 dns-udp-queries-received-ipv6: 184076364 dns-tcp-queries-received-ipv4: 23218850 dns-tcp-queries-received-ipv6: 4255607 dns-udp-responses-sent-ipv4: 2577693923 dns-udp-responses-sent-ipv6: 183983529 dns-tcp-responses-sent-ipv4: 21434129 dns-tcp-responses-sent-ipv6: 2732