200-301 · Question #1672
200-301 Question #1672: Real Exam Question with Answer & Explanation
The correct answer is D: to resolve domain names via multiple DNS servers. In a recursive DNS query, the client (usually a user's device or application) asks a DNS resolver (like a local DNS server) to resolve a domain name. The DNS resolver takes on the responsibility of performing all the necessary queries to other DNS servers (including root, TLD, an
Question
What is the primary purpose of a recursive query in DNS?
Options
- Ato perform a reverse DNS lookup
- Bto update DNS records on a server
- Cto refresh the TTL of specific DNS records
- Dto resolve domain names via multiple DNS servers
Explanation
In a recursive DNS query, the client (usually a user's device or application) asks a DNS resolver (like a local DNS server) to resolve a domain name. The DNS resolver takes on the responsibility of performing all the necessary queries to other DNS servers (including root, TLD, and authoritative servers) until it finds the IP address for the requested domain. The recursive DNS resolver then returns the final result (the IP address) to the client.
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