--- service: a.root-servers.net start-period: '2015-10-08T00:00:00Z' end-period: '2015-10-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3412222795 dns-udp-queries-received-ipv6: 262486489 dns-tcp-queries-received-ipv4: 21187987 dns-tcp-queries-received-ipv6: 8590668 dns-udp-responses-sent-ipv4: 3411799560 dns-udp-responses-sent-ipv6: 262294655 dns-tcp-responses-sent-ipv4: 17936880 dns-tcp-responses-sent-ipv6: 7115930