What specific type of dns query instructs a dns server to process the query until the server replies with an address that satisfies the query or with an "i don't know" message? a. recursive b. referralc. iterative d. resolver

a)Recursive

Explanation: Recursive DNS( Domain Name System) is the server that support the DNS servers in authority.They help in the management of the load that gets produced by the requests from the user. The load  is managed by splitting/distributing so that the website requests becomes supportive and load can be relieved.

Other options are incorrect because they don't revert with the query message   for the DNS servers processing .Thus, the correct option is option(a).

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