--- service: j.root-servers.net start-period: '2014-07-31T00:00:00Z' end-period: '2014-07-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4059284886 dns-udp-queries-received-ipv6: 258633034 dns-tcp-queries-received-ipv4: 53359830 dns-tcp-queries-received-ipv6: 6488265 dns-udp-responses-sent-ipv4: 4079290668 dns-udp-responses-sent-ipv6: 257895188 dns-tcp-responses-sent-ipv4: 55238189 dns-tcp-responses-sent-ipv6: 3385926