--- service: j.root-servers.net start-period: '2015-09-23T00:00:00Z' end-period: '2015-09-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3747227787 dns-udp-queries-received-ipv6: 540796101 dns-tcp-queries-received-ipv4: 65204745 dns-tcp-queries-received-ipv6: 25132105 dns-udp-responses-sent-ipv4: 3753807615 dns-udp-responses-sent-ipv6: 539715655 dns-tcp-responses-sent-ipv4: 63204993 dns-tcp-responses-sent-ipv6: 23028975