What is Domain Name System, a directory system to convert website names to IP addresses?

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Study for the Network Security Instructional Terminology Test. Enhance your knowledge with multiple choice questions, each accompanied by hints and explanations. Ensure readiness for your exam!

Multiple Choice

What is Domain Name System, a directory system to convert website names to IP addresses?

Explanation:
Domain Name System is the directory-like service that makes Internet navigation possible by turning human-friendly domain names into numerical IP addresses. It operates as a distributed database that stores mappings from names such as www.example.com to the actual addresses devices use to communicate. When you visit a site, your device asks a DNS resolver to find the IP; the resolver queries a hierarchy of servers (root, top-level domain, authoritative) and returns the address, often caching it for quicker future lookups. This translation from names to addresses is what allows browsers and other clients to reach the correct server. The other terms describe something different: DNS poisoning is an attack that corrupts DNS data, Dig is a tool for querying DNS records, and Direct isn’t a term used for this purpose.

Domain Name System is the directory-like service that makes Internet navigation possible by turning human-friendly domain names into numerical IP addresses. It operates as a distributed database that stores mappings from names such as www.example.com to the actual addresses devices use to communicate. When you visit a site, your device asks a DNS resolver to find the IP; the resolver queries a hierarchy of servers (root, top-level domain, authoritative) and returns the address, often caching it for quicker future lookups. This translation from names to addresses is what allows browsers and other clients to reach the correct server. The other terms describe something different: DNS poisoning is an attack that corrupts DNS data, Dig is a tool for querying DNS records, and Direct isn’t a term used for this purpose.

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