--- service: j.root-servers.net start-period: '2015-12-04T00:00:00Z' end-period: '2015-12-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4478656674 dns-udp-queries-received-ipv6: 545851669 dns-tcp-queries-received-ipv4: 115687299 dns-tcp-queries-received-ipv6: 2120064 dns-udp-responses-sent-ipv4: 4226453560 dns-udp-responses-sent-ipv6: 550777707 dns-tcp-responses-sent-ipv4: 104135097 dns-tcp-responses-sent-ipv6: 315356