--- service: j.root-servers.net start-period: '2016-03-15T00:00:00Z' end-period: '2016-03-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5550189627 dns-udp-queries-received-ipv6: 657059501 dns-tcp-queries-received-ipv4: 193596591 dns-tcp-queries-received-ipv6: 3838589 dns-udp-responses-sent-ipv4: 5307810439 dns-udp-responses-sent-ipv6: 704678108 dns-tcp-responses-sent-ipv4: 172368072 dns-tcp-responses-sent-ipv6: 280468