HOTSPOT - For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point. Hot Area:
Suggested Answer:
* No. With a recursive name query , the DNS client requires that the DNS server respond to the client with either the requested resource record or an error message stating that the record or domain name does not exist. The DNS server cannot just refer the DNS client to a different DNS server. * No. * Yes. An iterative name query is one in which a DNS client allows the DNS server to return the best answer it can give based on its cache or zone data. If the queried DNS server does not have an exact match for the queried name, the best possible information it can return is a referral (that is, a pointer to a DNS server authoritative for a lower level of the domain namespace). The DNS client can then query the DNS server for which it obtained a referral. It continues this process until it locates a DNS server that is authoritative for the queried name, or until an error or time-out condition is met. Example: Reference: Recursive and Iterative Queries
Correct me if I'm wrong, but doesn't the desktop perform the recursive query to the DNS server? If the DNS Server doesn't have the IP address, then that DNS server performs an "Iterative" query to other DNS servers to request the IP Address.
When DNS servers communicate to other DNS servers requesting an IP address, it's called an iterative DNS query. When a desktop communicates to the DNS Server to request an IP address, it's called a recursive DNS query. Therefore I would go with No for the first question.
https://www.youtube.com/watch?v=pkvaTUl5F-Y&t=334s
A recursive DNS lookup is where one DNS server communicates with several other DNS servers to hunt down an IP address and return it to the client. So how could the first answer be 'No' ? Its 'Yes'
I thought that DNS servers communicate with each other through private network protocols. Recursive DNS servers communicate with other servers to find IP addresses right? So I think the first answer is for sure YES.
I also agree. That first one is literally the definition of a recursive DNS server. When that DNS server doesn't know the way to "said website" it will contact other DNS servers starting with the root and making its way down the hierarchy until it learns how to access "said website"
upvoted 2 times
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