--- service: j.root-servers.net start-period: '2016-06-28T00:00:00Z' end-period: '2016-06-28T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6056678184 dns-udp-queries-received-ipv6: 721603169 dns-tcp-queries-received-ipv4: 163409899 dns-tcp-queries-received-ipv6: 5445099 dns-udp-responses-sent-ipv4: 5934370244 dns-udp-responses-sent-ipv6: 726201422 dns-tcp-responses-sent-ipv4: 146304696 dns-tcp-responses-sent-ipv6: 2690342