--- service: j.root-servers.net start-period: '2015-01-22T00:00:00Z' end-period: '2015-01-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3606088895 dns-udp-queries-received-ipv6: 279327417 dns-tcp-queries-received-ipv4: 30715356 dns-tcp-queries-received-ipv6: 5529195 dns-udp-responses-sent-ipv4: 3613327261 dns-udp-responses-sent-ipv6: 279334855 dns-tcp-responses-sent-ipv4: 31019978 dns-tcp-responses-sent-ipv6: 4652699