The Domain Name System (DNS) is a hierarchical and decentralized naming system used to translate human-friendly domain names (like www.example.com) into machine-readable IP addresses (like 192.0.2.1). This translation process is essential for locating and identifying computer services and devices on the internet.
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The Domain Name System provides a hierarchical namespace with delegated administration and distributed servers. Caching and replication help supply its service. A consistent namespace is compatible with distribution of responsibility across organisations.[ref]
