--- service: j.root-servers.net start-period: '2014-07-28T00:00:00Z' end-period: '2014-07-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2990595334 dns-udp-queries-received-ipv6: 213455425 dns-tcp-queries-received-ipv4: 30193079 dns-tcp-queries-received-ipv6: 4529571 dns-udp-responses-sent-ipv4: 2987085091 dns-udp-responses-sent-ipv6: 213026443 dns-tcp-responses-sent-ipv4: 30968327 dns-tcp-responses-sent-ipv6: 2276753