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Understanding IP Addresses and DNS – Short Course — glossary

Understanding IP Addresses and DNS – Short Course — glossary

Plain-English definitions of the 3 terms used in this course. Each one is written to make sense on its own, so you can look up a single word without reading anything else.

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D

DNS #

The Domain Name System - the internet's phone book, translating names to IP addresses.

I

IP Address #

A numeric label (IPv4 or IPv6) identifying a device on a network.

S

Subnet #

A logical subdivision of an IP network.

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These definitions come from Understanding IP Addresses and DNS – Short Course, which teaches the material in order with practice, feedback and assessment.

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