--- service: a.root-servers.net start-period: '2014-06-25T00:00:00Z' end-period: '2014-06-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1594660191 dns-udp-queries-received-ipv6: 122167575 dns-tcp-queries-received-ipv4: 8838415 dns-tcp-queries-received-ipv6: 764568 dns-udp-responses-sent-ipv4: 1594516750 dns-udp-responses-sent-ipv6: 122183951 dns-tcp-responses-sent-ipv4: 8841603 dns-tcp-responses-sent-ipv6: 488765