--- service: j.root-servers.net start-period: '2015-05-28T00:00:00Z' end-period: '2015-05-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3453753385 dns-udp-queries-received-ipv6: 312018303 dns-tcp-queries-received-ipv4: 33360221 dns-tcp-queries-received-ipv6: 6404574 dns-udp-responses-sent-ipv4: 3393397366 dns-udp-responses-sent-ipv6: 311876658 dns-tcp-responses-sent-ipv4: 32669869 dns-tcp-responses-sent-ipv6: 3886552