--- service: j.root-servers.net start-period: '2017-02-28T00:00:00Z' end-period: '2017-02-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6542213135 dns-udp-queries-received-ipv6: 713629616 dns-tcp-queries-received-ipv4: 187309466 dns-tcp-queries-received-ipv6: 12855771 dns-udp-responses-sent-ipv4: 6390855667 dns-udp-responses-sent-ipv6: 702578932 dns-tcp-responses-sent-ipv4: 158882308 dns-tcp-responses-sent-ipv6: 13037624