Recursive Query in DNS refers to the process where the DNS server will continue to query other servers on behalf of the client until it gets a resolution or an error message indicating that the Fully Qualified Domain Name (FQDN) doesn't exist. This means that the DNS server will not just provide a referral to another server but will actively seek the answer for the client.
In a Recursive Query, the DNS server itself will query other DNS servers to resolve the query on behalf of the client. This means that the DNS server takes full responsibility for finding the answer to the query and does not rely on the client to perform additional queries.
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DNS Data flow
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