--- service: a.root-servers.net start-period: '2015-08-08T00:00:00Z' end-period: '2015-08-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4287857651 dns-udp-queries-received-ipv6: 261487366 dns-tcp-queries-received-ipv4: 16633671 dns-tcp-queries-received-ipv6: 10451551 dns-udp-responses-sent-ipv4: 4314124424 dns-udp-responses-sent-ipv6: 263474203 dns-tcp-responses-sent-ipv4: 14070357 dns-tcp-responses-sent-ipv6: 8993497