--- service: j.root-servers.net start-period: '2015-09-11T00:00:00Z' end-period: '2015-09-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4861124727 dns-udp-queries-received-ipv6: 293319879 dns-tcp-queries-received-ipv4: 71964742 dns-tcp-queries-received-ipv6: 21556385 dns-udp-responses-sent-ipv4: 3781500914 dns-udp-responses-sent-ipv6: 293118330 dns-tcp-responses-sent-ipv4: 69911498 dns-tcp-responses-sent-ipv6: 19735925