--- service: j.root-servers.net start-period: '2014-12-28T00:00:00Z' end-period: '2014-12-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2965889261 dns-udp-queries-received-ipv6: 220785768 dns-tcp-queries-received-ipv4: 27543415 dns-tcp-queries-received-ipv6: 5530342 dns-udp-responses-sent-ipv4: 2968737949 dns-udp-responses-sent-ipv6: 220771318 dns-tcp-responses-sent-ipv4: 27579794 dns-tcp-responses-sent-ipv6: 4846325