--- service: a.root-servers.net start-period: '2016-08-31T00:00:00Z' end-period: '2016-08-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4473339702 dns-udp-queries-received-ipv6: 477976383 dns-tcp-queries-received-ipv4: 106026848 dns-tcp-queries-received-ipv6: 6247760 dns-udp-responses-sent-ipv4: 4457055241 dns-udp-responses-sent-ipv6: 477997217 dns-tcp-responses-sent-ipv4: 103360933 dns-tcp-responses-sent-ipv6: 4543168