--- service: j.root-servers.net start-period: '2015-03-09T00:00:00Z' end-period: '2015-03-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3279780105 dns-udp-queries-received-ipv6: 338818877 dns-tcp-queries-received-ipv4: 29086447 dns-tcp-queries-received-ipv6: 5708716 dns-udp-responses-sent-ipv4: 3279691307 dns-udp-responses-sent-ipv6: 338770722 dns-tcp-responses-sent-ipv4: 28697099 dns-tcp-responses-sent-ipv6: 4308820