Cisco Ccna Certification Exam Tutorial The Osi Model S Physical Layer

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To pass your CCNA exam and earn this coveted certification, you’ve got to master the seven layers of the OSI model and what each layer does. For those of you taking the two-exam path, you can expect quite a few OSI model questions on the Intro exam. In this seven-part series, we’ll spend some time […]


Cisco Ccna Exam Tutorial Mapping The Osi Model To The Tcpip Model

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The OSI model is the model that most networking personnel are familiar with, but to earn your CCNA, you need to know the OSI model, the TCP/IP model, and how the two map to each other. The four layers of the TCP/IP architecture can be compared to certain levels of the OSI model. It’s important […]


Cisco Ccna Certification The Importance Of The Osi Model

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There’s nothing I enjoy more than teaching Cisco technologies, especially CCNA candidates. Whether it’s in-person or online, everyone’s excited to be there. There’s a sense of anticipation in the air, and everyone is ready to work hard, get their hands on the racks of Cisco routers and switches I have available… … and then I […]