--- service: j.root-servers.net start-period: '2015-07-09T00:00:00Z' end-period: '2015-07-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3183007394 dns-udp-queries-received-ipv6: 275751787 dns-tcp-queries-received-ipv4: 35403208 dns-tcp-queries-received-ipv6: 23192983 dns-udp-responses-sent-ipv4: 3105685548 dns-udp-responses-sent-ipv6: 275609641 dns-tcp-responses-sent-ipv4: 34527025 dns-tcp-responses-sent-ipv6: 21230591