--- service: a.root-servers.net start-period: '2016-08-27T00:00:00Z' end-period: '2016-08-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3230874265 dns-udp-queries-received-ipv6: 437443893 dns-tcp-queries-received-ipv4: 54148184 dns-tcp-queries-received-ipv6: 5523585 dns-udp-responses-sent-ipv4: 3221906109 dns-udp-responses-sent-ipv6: 437394155 dns-tcp-responses-sent-ipv4: 50712640 dns-tcp-responses-sent-ipv6: 3943310