--- service: j.root-servers.net start-period: '2015-02-11T00:00:00Z' end-period: '2015-02-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3181307521 dns-udp-queries-received-ipv6: 288388307 dns-tcp-queries-received-ipv4: 30094049 dns-tcp-queries-received-ipv6: 5599278 dns-udp-responses-sent-ipv4: 3192372803 dns-udp-responses-sent-ipv6: 288424296 dns-tcp-responses-sent-ipv4: 30244272 dns-tcp-responses-sent-ipv6: 4360670