--- service: j.root-servers.net start-period: '2015-05-11T00:00:00Z' end-period: '2015-05-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3123755946 dns-udp-queries-received-ipv6: 256837006 dns-tcp-queries-received-ipv4: 22447747 dns-tcp-queries-received-ipv6: 4566794 dns-udp-responses-sent-ipv4: 3062339842 dns-udp-responses-sent-ipv6: 256743896 dns-tcp-responses-sent-ipv4: 21961640 dns-tcp-responses-sent-ipv6: 3587438