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.

Identify the elements of unified communications technology. This includes the proper treatment of traffic types such as VoIP and video. You should also understand what UC servers, devices, and gateways are. Finally, describe the methods used to provide QoS to latency-sensitive traffic.

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...