CCNA SEMESTER 1 V 3.0. CHAPTER 2. Students completing this chapter should be able to:. Explain the importance of bandwidth in networking. Use an analogy from their experience to explain bandwidth. Explain the difference between bandwidth and throughput. Calculate data transfer rates.
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Businesses needed a
solution that would
successfully address the
following three problems:
Routers have all the capabilities listed above.
- token passing
Fiber Distributed Data Interface (FDDI)
Protocols control all aspects of data
communication, which include the following:
(IEEE, ANSI , TIA , EIA , ITU )
LANs consist of the
Network interface cards
Some common LAN
FDDILocal-area networks (LANs)
WANs interconnect LANs, which then provide access to computers or file servers in other locations.
Some common WAN
Integrated Services Digital Network (ISDN)
Digital Subscriber Line (DSL)
US (T) and Europe (E) Carrier Series – T1, E1, T3, E3
Synchronous Optical Network (SONET)Wide-area networks (WANs)
A SAN is a dedicated, high-performance network used to
move data between servers and storage resources
SANs offer the following features:
The OSI reference model explains how packets travel through the
various layers to another device on a network
Dividing the network into seven layers provides the following
The relationship between IP and TCP is an important one. IP can be thought to point the way for the packets, while TCP provides a reliable transport