--- service: j.root-servers.net start-period: '2014-04-13T00:00:00Z' end-period: '2014-04-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2578570350 dns-udp-queries-received-ipv6: 195940036 dns-tcp-queries-received-ipv4: 21351853 dns-tcp-queries-received-ipv6: 4654814 dns-udp-responses-sent-ipv4: 2537574335 dns-udp-responses-sent-ipv6: 195609835 dns-tcp-responses-sent-ipv4: 20383976 dns-tcp-responses-sent-ipv6: 177