--- service: j.root-servers.net start-period: '2015-04-01T00:00:00Z' end-period: '2015-04-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3280188886 dns-udp-queries-received-ipv6: 317852826 dns-tcp-queries-received-ipv4: 26230276 dns-tcp-queries-received-ipv6: 5447309 dns-udp-responses-sent-ipv4: 3292685395 dns-udp-responses-sent-ipv6: 317801336 dns-tcp-responses-sent-ipv4: 25947673 dns-tcp-responses-sent-ipv6: 3877291