--- service: a.root-servers.net start-period: '2016-08-30T00:00:00Z' end-period: '2016-08-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3895159164 dns-udp-queries-received-ipv6: 482901132 dns-tcp-queries-received-ipv4: 67211908 dns-tcp-queries-received-ipv6: 8210161 dns-udp-responses-sent-ipv4: 3881485910 dns-udp-responses-sent-ipv6: 482818607 dns-tcp-responses-sent-ipv4: 62669187 dns-tcp-responses-sent-ipv6: 6493002