CCNA Free Self study guide - Download E book
Welcome to the exciting world of internetworking. This first chapter will really help you understand the
basics of internetworking by fucusing on how to connect networks together using Cisco routers and
switches. First, you need to know exactly what an internetwork is, right? You create an internetwork when you take two or more LANs or WANs and connect them via a router, and configure a logical network addressing scheme with a protocol such as IP.I'll be covering these four topics in this chapter
1. Internetworking basics
2. Network segmentation
3. How bridges,
switches, and routers are used to physically segment a network
4. How routers are employed to create an internetwork
I’m also going to dissect the
Open Systems Interconnection (
OSI) model and describe each part to you in detail because you really need a good grasp of it for the solid foundation you'll build your networking knowledge upon. The
OsI model has seven hierarchical layers that were developed to enable different networks to communicate reliably between disparate systems
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