Online Resources to Prepare for Cisco Certification ExamsCisco certification helps you prepare for network roles working with Cisco network equipment. Now, this demand is intensifying. PAN (Personal Area Network) – PANs typically exist within a 10-meter range and are used to connect devices for personal use. Incoming packets are stored in a memory buffer and the CPU is interrupted. A network switch aggregates all the connections on the LAN as well as connects them to the router, which forwards the appropriate traffic over the WAN connection. 4.
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