--- service: j.root-servers.net start-period: '2015-03-28T00:00:00Z' end-period: '2015-03-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3362879116 dns-udp-queries-received-ipv6: 315154890 dns-tcp-queries-received-ipv4: 31828275 dns-tcp-queries-received-ipv6: 4474777 dns-udp-responses-sent-ipv4: 3412910353 dns-udp-responses-sent-ipv6: 315129146 dns-tcp-responses-sent-ipv4: 32202400 dns-tcp-responses-sent-ipv6: 3744352