Glossary of Key Terms

Numerics

* The output of ping and traceroute when a device is unreachable.

2FA Two-factor authentication; an authentication system that uses two factors to authenticate users. For password-based systems, these are normally something you know and something you have.

5G Fifth-generation cellular network.

802.11 IEEE working group that standardizes Wi-Fi.

A

AAA A system that uses authentication, authorization, and accounting to ensure resources are properly accessed and used.

abstraction The act of removing information to reduce the amount of state or information; this could be aggregation or summarization in a network.

acceptance cone The range of angles from which a fiber-optic cable will accept light signals.

access ...

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