What is the role of DNS?

What is the role of DNS?

• A. Stores authentication tokens for domains
• B. Encrypts web traffic for privacy
• C. Resolves domain names to IP addresses
• D. Enables load balancing between servers

Answer: (C)

The essential function is translating human-friendly domain names into machine-friendly addresses so devices can reach the right server. DNS acts like an internet directory: you request a name, the system looks up the corresponding IP address, and that address is returned to your device so it can route the connection. This process is distributed and cached, meaning many servers across the globe work together to answer queries quickly and store recent results for faster future lookups. While other security and traffic-management features exist in related technologies, the primary role of DNS is to resolve names to addresses, enabling you to reach the correct server.

The essential function is translating human-friendly domain names into machine-friendly addresses so devices can reach the right server. DNS acts like an internet directory: you request a name, the system looks up the corresponding IP address, and that address is returned to your device so it can route the connection. This process is distributed and cached, meaning many servers across the globe work together to answer queries quickly and store recent results for faster future lookups. While other security and traffic-management features exist in related technologies, the primary role of DNS is to resolve names to addresses, enabling you to reach the correct server.