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1). Cisco CCNA Certification Exam Tutorial: The OSI Model’s Physical Layer By : Chris Bryant, CCIE #12933
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 taking a look at each of the OSI model layers, starting with the Physical layer.
Article Related to: ccna, exam, free, tutorial, osi, model, physical, layer, icnd, intro, certification, bryant, advantage, chris, bits, ethernet, token, ring
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2). Cisco CCNA Certification: Error Detection vs. Error Recovery By : Chris Bryant, CCIE #12933
Passing the CCNA, Intro, and ICND exam is all about knowing and noticing the details. (Which makes perfect sense, since becoming a master networking administrator or engineer is also about noticing the details!) One such detail knows the difference between error detection and error recovery. While the terms are sometimes used interchangeably, they are not the same thing.
Article Related to: ccna, free, exam, pass, certification, icnd, intro, error, detection, recovery, frame, segment, tcp, fcs, crc, transport, layer, data, link
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3). Cisco CCNP / BCMSN Exam Tutorial: The Core Layer Of Cisco's Three-Layer Model By : Chris Bryant, CCIE #12933
In this section, you're going to be reintroduced to a networking model you first saw in your CCNA studies. No, it's not the OSI model or the TCP/IP model - it's the Cisco Three-Layer Hierarchical Model. Let's face it, just about all you had to do for the CCNA was memorize the three layers and the order they were found in that model, but the stakes are raised here in your CCNP studies.
Article Related to: cisco, ccnp, exam, certification, bcmsn, core, layer, three, model, networking, switch, pass, ccie
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