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CCNA Data Center DCICN 200-150 Official Cert Guide by Ozden Karakok, Cesar Obediente, Chad Hintz

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Chapter 3. Fundamentals of Ethernet LANs

This chapter covers the following exam topics:

2.2. Describe classic Ethernet fundamentals

2.2.a. Forward

2.2.b. Filter

2.2.c. Flood

2.2.d. MAC address table

Most every enterprise computer network can be separated into two general types of technology: local area networks (LAN) and wide area networks (WAN). LANs typically connect nearby devices: devices in the same room (whether a large data center or a small office), in the same building, or in a campus of buildings. In contrast, WANs connect devices that are typically relatively far apart. Together, LANs and WANs create a complete enterprise computer network, working together to deliver data from one device to another.

Many types of LANs have existed ...

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