--- service: j.root-servers.net start-period: '2015-03-12T00:00:00Z' end-period: '2015-03-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3161017582 dns-udp-queries-received-ipv6: 333179373 dns-tcp-queries-received-ipv4: 26503947 dns-tcp-queries-received-ipv6: 5466630 dns-udp-responses-sent-ipv4: 3186925254 dns-udp-responses-sent-ipv6: 333044479 dns-tcp-responses-sent-ipv4: 26360504 dns-tcp-responses-sent-ipv6: 4588570