--- service: j.root-servers.net start-period: '2015-08-20T00:00:00Z' end-period: '2015-08-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4861416337 dns-udp-queries-received-ipv6: 284858014 dns-tcp-queries-received-ipv4: 60822296 dns-tcp-queries-received-ipv6: 23328225 dns-udp-responses-sent-ipv4: 3863555572 dns-udp-responses-sent-ipv6: 285728728 dns-tcp-responses-sent-ipv4: 60379512 dns-tcp-responses-sent-ipv6: 21451254