--- service: j.root-servers.net start-period: '2015-04-13T00:00:00Z' end-period: '2015-04-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3079230190 dns-udp-queries-received-ipv6: 328306049 dns-tcp-queries-received-ipv4: 22758647 dns-tcp-queries-received-ipv6: 4955358 dns-udp-responses-sent-ipv4: 3018442128 dns-udp-responses-sent-ipv6: 328378274 dns-tcp-responses-sent-ipv4: 22320670 dns-tcp-responses-sent-ipv6: 5393636