What are the two different types of DNS requests?
What will be an ideal response?
ANSWER: There are two types of DNS requests:
* recursive query-A query that demands a resolution or the answer "It can't be found." For example, the initial request the resolver makes to the local server is a recursive query. The local server must provide the information requested by the resolver, as in "The buck stops here."
* iterative query-A query that does not demand resolution. For example, when the local server issues queries to other servers, the other servers only provide information if they have it.
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