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→Test the correctness of your DNS server's responses
* Review the output of each DNS query result and compare it with the expected value as derived from the corresponding DNS resource record in the zone file. If there is any mismatch, employ your troubleshooting skill to fix it.
As an example, if an authoritative DNS server with IP address 192.168.99,.53 has the cp.net zone file:
<pre>
$TTL 300