--- service: j.root-servers.net start-period: '2014-02-20T00:00:00Z' end-period: '2014-02-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2987072693 dns-udp-queries-received-ipv6: 222726635 dns-tcp-queries-received-ipv4: 24624958 dns-tcp-queries-received-ipv6: 5161673 dns-udp-responses-sent-ipv4: 2961648690 dns-udp-responses-sent-ipv6: 222582749 dns-tcp-responses-sent-ipv4: 23242768 dns-tcp-responses-sent-ipv6: 187