--- service: j.root-servers.net start-period: '2015-04-03T00:00:00Z' end-period: '2015-04-03T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3183784263 dns-udp-queries-received-ipv6: 315726254 dns-tcp-queries-received-ipv4: 25206933 dns-tcp-queries-received-ipv6: 6559863 dns-udp-responses-sent-ipv4: 3140208164 dns-udp-responses-sent-ipv6: 315694482 dns-tcp-responses-sent-ipv4: 24994484 dns-tcp-responses-sent-ipv6: 3896732