--- service: j.root-servers.net start-period: '2015-07-14T00:00:00Z' end-period: '2015-07-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4142958824 dns-udp-queries-received-ipv6: 297138208 dns-tcp-queries-received-ipv4: 36366128 dns-tcp-queries-received-ipv6: 24527267 dns-udp-responses-sent-ipv4: 4062352592 dns-udp-responses-sent-ipv6: 296996023 dns-tcp-responses-sent-ipv4: 35348754 dns-tcp-responses-sent-ipv6: 25143176