--- service: j.root-servers.net start-period: '2015-09-17T00:00:00Z' end-period: '2015-09-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5041330916 dns-udp-queries-received-ipv6: 352705525 dns-tcp-queries-received-ipv4: 71632346 dns-tcp-queries-received-ipv6: 24066727 dns-udp-responses-sent-ipv4: 3933595948 dns-udp-responses-sent-ipv6: 352435063 dns-tcp-responses-sent-ipv4: 69807651 dns-tcp-responses-sent-ipv6: 22176548