--- service: j.root-servers.net start-period: '2015-07-12T00:00:00Z' end-period: '2015-07-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3810749668 dns-udp-queries-received-ipv6: 274599869 dns-tcp-queries-received-ipv4: 32339322 dns-tcp-queries-received-ipv6: 23838419 dns-udp-responses-sent-ipv4: 3740671995 dns-udp-responses-sent-ipv6: 274498547 dns-tcp-responses-sent-ipv4: 31504826 dns-tcp-responses-sent-ipv6: 22301629