DNS is used as a naming system for...

DNS is used as a naming system for...

• A. Naming system for computers, services, or other resources connected to the Internet or a private network.
• B. Protocol for sending emails securely.
• C. Mechanism for distributing IP addresses automatically.
• D. Service for resolving domain names to IP addresses.

Answer: (A)

DNS is the naming system for resources on networks. It lets humans refer to computers, services, or devices with friendly names and provides the means to locate those resources across the Internet or within private networks. This naming capability is what makes navigation across complex networks practical, since you don’t have to remember numeric addresses. While DNS does perform name resolution to IP addresses, that function describes a part of what DNS does, not its overall purpose. The other descriptions align with related ideas—secure email protocols, or automatic IP distribution (like DHCP)—but they don’t capture DNS’s role as the system that names and organizes resources on a network.

DNS is the naming system for resources on networks. It lets humans refer to computers, services, or devices with friendly names and provides the means to locate those resources across the Internet or within private networks. This naming capability is what makes navigation across complex networks practical, since you don’t have to remember numeric addresses. While DNS does perform name resolution to IP addresses, that function describes a part of what DNS does, not its overall purpose. The other descriptions align with related ideas—secure email protocols, or automatic IP distribution (like DHCP)—but they don’t capture DNS’s role as the system that names and organizes resources on a network.