production3
Certification Zone Join NowLog InMy Shopping Cart
Tutorials Study Quizzes Lab Scenarios Practice Exams
Study Guides

Concise explanations of key technical topics found on Cisco's® CCNA™, CCNP™, and CCIE™ exams
Click Here!

Author: Howard C. Berkowitz

Focus: CCNA

Issue Date: Oct 1, 2023

Tutorial
29-Question Study Quiz

Tell a friend about this Study Guide

Friend's Email Address:

OSI Reference Model, 1st Ed.

The Open Systems Interconnection (OSI) model is a cornerstone of network communications. A thorough understanding of its layers and functioning is important for any internetworking professional. This tutorial presents a model overview and discusses:

  • The seven elements (layers) of communications
  • The functions that happen at each layer of the model
  • Communications within, and between, layers
  • How network adapters, hubs, switches, and routers function within the model
  • Preparing data for transmission between devices at the same layer, and at different layers.

    Have a Comment?

    Do you have a comment about this or any other Certification Zone Study Guide? Let us know what you think!
    • Personal Study Zone
    Home
    Join Now
    About Certification Zone
    Zone-Casts
    NetSmarts
    Exam Study Tool
    Zone Newsletter
    Testimonials
    Shop for Study Tools
    Our Cisco Certified Experts
    FAQ
    Contribute
    Partner / Advertise
    Contact Us
    More Resources

    "Your site offers the tools needed to pass the exams, hands down."

    John Manning
    CCNA
    Fleet, Troy, NY
    Read More Testimonials
    Copyright © Genium Group, Inc. All rights reserved. Terms of Use | Privacy Policy 
    Certification Zone is an independent product, not sponsored by, endorsed by, or affiliated with Cisco Systems, Microsoft Corporation, or the Field Certified Professionals Association. Cisco®, Cisco Systems®, CCNA™, CCNP™, CCVP™, CCIE™, CCSI™, and the Cisco Systems logo are trademarks or registered trademarks of Cisco Systems Inc. Microsoft®, Windows®, Windows 2000™, Windows 2003™, MCSA™, and MCSE™ are trademarks or registered trademarks of Microsoft Corporation. FCSA™ and FCSE™ are registered trademarks of the Field Certified Professionals Association.