Cisco authorized self-study book for CCNA fundamentals Prepare for the CCNA INTRO exam 640-821 or CCNA exam 640-801 with a Cisco authorized self-study guide. You'll learn how to: Describe the basic components of a PC, the OSI model, and fundamental networking concepts and terminology Create a simple Ethernet network and describe the components and functions of an Ethernet LAN Determine the most appropriate network topology for typical user requirements Describe issues related to shared LANs, add hubs and switches to expand an Ethernet LAN, and optimize LANs Define how networks can be connected by routing protocols and how data is transmitted via routed networks Test the connectivity between hosts on a routed network Construct a network addressing scheme with subnet mask computations Compare UDP to TCP and explain the functions of both protocols in communicating with sites not on an Ethernet LAN ...

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