--- service: d.root-servers.net start-period: '2015-11-12T00:00:00Z' end-period: '2015-11-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3977984976 dns-udp-queries-received-ipv6: 460305140 dns-tcp-queries-received-ipv4: 20976235 dns-tcp-queries-received-ipv6: 496873 dns-udp-responses-sent-ipv4: 3964307920 dns-udp-responses-sent-ipv6: 460048396 dns-tcp-responses-sent-ipv4: 20898191 dns-tcp-responses-sent-ipv6: 494663