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From CCNA Certification Practice Exam ( 200 - 301 ) Study Guide - Free Exam Prep | FigigExams

The OSI model and TCP/IP model are the language that every networking professional speaks. Every Cisco command, every troubleshooting step, and every design decision references these models.

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Community member · 2026-05-26T14:46:41.011Z

The OSI model and TCP/IP model are the language that every networking professional speaks.

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