--- service: j.root-servers.net start-period: '2015-07-23T00:00:00Z' end-period: '2015-07-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4371339470 dns-udp-queries-received-ipv6: 306162897 dns-tcp-queries-received-ipv4: 38671128 dns-tcp-queries-received-ipv6: 26667241 dns-udp-responses-sent-ipv4: 3768975334 dns-udp-responses-sent-ipv6: 306264191 dns-tcp-responses-sent-ipv4: 37946220 dns-tcp-responses-sent-ipv6: 25029382