20.4. Exam Essentials
Understand the difference between a physical network diagram and a logical network diagram
A physical diagram shows all of the physical connections and devices, and in many cases the cables or connections between the devices. It's a very detail-oriented view of the hardware on your network. A logical network diagram takes a higher-level view, such as your subnets and which protocols those subnets use to communicate with each other.
Understand the difference between policies, procedures, and regulations
A policy is created to give users guidance as to what is acceptable behavior on the network. Policies also help resolve problems before they begin by specifying who has access to what resources and how configurations should ...
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