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Answer :
The type of zone a DNS server holds to keep the actual DNS records of a domain is called an Authoritative DNS zone.
Let's break this down:
DNS (Domain Name System): It's the system that translates human-friendly domain names (like www.example.com) into IP addresses that computers use to identify each other on the network.
DNS Zones: These are segments of the DNS namespace. Each zone contains DNS records for a part of the domain name hierarchy.
Authoritative DNS Zone (Option C): This is the zone that directly manages the DNS records for a domain or subdomain. It holds the actual data and records such as A (address), MX (mail exchange), and CNAME (canonical name) records. When a DNS server is authoritative for a zone, it has the authority to respond to queries about that domain with the definitive, correct answer. This is crucial for ensuring that users are directed to the right IP addresses for web servers or other resources.
Other Types:
- Non-authoritative zone is not directly responsible for the DNS records but may have cached responses.
- Caching zone temporarily stores DNS query responses for efficiency but doesn't hold the original data permanently.
- Secondary zone is a backup of the primary (authoritative) zone, receiving updates from the primary DNS server.
Choosing the authoritative DNS zone ensures accuracy and reliability in managing and resolving domain names, making this the correct answer.
Thus, the correct answer is C. Authoritative DNS Zone.
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