--- service: j.root-servers.net start-period: '2015-06-06T00:00:00Z' end-period: '2015-06-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2806922782 dns-udp-queries-received-ipv6: 185983079 dns-tcp-queries-received-ipv4: 26308479 dns-tcp-queries-received-ipv6: 10504973 dns-udp-responses-sent-ipv4: 2737813925 dns-udp-responses-sent-ipv6: 185948349 dns-tcp-responses-sent-ipv4: 25642761 dns-tcp-responses-sent-ipv6: 8970915