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comnet-03.pdf

3.2.1 The Domain Name System (DNS)

Internet hosts and routers communicate using IP addresses (32-bit). However, humans prefer using hostnames (e.g., www.google.com).

The DNS is a distributed database implemented in a hierarchy of many name servers. It serves as an application-layer protocol that allows hosts to query the database and resolve hostnames to IP addresses.

DNS is critically important for the internet application environment because it simplifies complex IP addresses into something easily remembered by humans...

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Question

What is the definition of DNS?

Answer

A distributed database implemented in a hierarchy of name servers that resolves hostnames to IP addresses.

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Artificial Intelligence (AI) is the simulation of human intelligence processes by machines, especially computer systems. These processes include learning (the acquisition of information and rules for using the information), reasoning (using rules to reach approximate or definite conclusions), and self-correction.

Particular applications of AI include expert systems, speech recognition, and machine vision. AI can be categorized as either weak or strong. Weak AI, also known as narrow AI, is an AI system that is designed and trained for a particular task. Strong AI, also known as artificial general intelligence, is an AI system with generalized human cognitive abilities.

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