Cisco CCNA Certification Exam
To pass your CCNA examination as well as gain this sought after accreditation, you’ve reached grasp the 7 layers of the OSI version as well as just what each layer does. For those of you taking the two-exam course, you could anticipate many OSI version inquiries on the Intro test. In this seven-part collection, we’ll invest a long time having a look at each of the OSI version layers, beginning with the Physical layer.
Usually, CCNA prospects ask if the OSI design has any kind of useful usages for network managers. I utilized to ask yourself the very same point, as well as I could currently inform you that the solution is most definitely of course!
Whenever a network tool isn’t really functioning correctly, I constantly claim to “begin at the physical layer”. The Physical layer is Layer One of the OSI version, as well as this is where fixing ought to constantly begin. If every little thing is great at Layer One, you simply relocate up to Layer Two, as well as proceed in this organized style up until the trouble is recognized.
The Physical layer is the layer at which little bits are sent over the physical media. There is no changing or directing taking place at this layer. The information has actually been damaged down right into even more convenient items up until the information takes the type of ones as well as absolutely nos at the Physical layer.
Also though there’s no switching over or transmitting at the Physical layer, CCNA prospects must be acquainted with a pair of network tools that function at Layer One. A center is primarily a multiport repeater, as well as both of these tools are taken into consideration Physical layer tools.
Discovering the OSI version’s Physical layer isn’t really simply vital in your CCNA examination research studies, it’s the initial step in any kind of network troubleshooting. Your network’s end individuals are going to have a challenging time sending out print work to a printer that’s transformed off!
In this seven-part collection, we’ll invest some time taking an appearance at each of the OSI design layers, beginning with the Physical layer.
The Physical layer is Layer One of the OSI design, and also this is where repairing must constantly begin. The Physical layer is the layer at which little bits are transferred over the physical media. Also though there’s no switching over or transmitting at the Physical layer, CCNA prospects need to be acquainted with a pair of network tools that function at Layer One.