CCNA Cisco Certified Network Associate Study Guide - FTP Server

Summary
Key Terms
Summary 51
This chapter began with a discussion of the OSI model, which is a
seven-layer model used to help application developers design applications
that can run on any type of system or network. I provided complete details
of each layer and discussed how Cisco views the specifications of the model
Different types of devices are specified at each of the OSI model’s layers.
This chapter discussed the different types of devices, cables, and connectors
used at each layer.
Also, I provided an introduction to the Cisco hierarchical network model,
which was created to help administrators design and understand hierarchical
networks. By using the Cisco three-layer model, you can effectively design,
implement, and maintain any size network.
Cisco makes a large range of router, hub, and switch products. I discussed
the different products Cisco creates and sells so that you can make more
informed decisions when building your internetwork.
Before taking the exam, be sure you’re familiar with the following terms.
access layer core layer
Application layer Data Communication Equipment
(DCE)
Application-Specific Integrated
Circuits (ASICs)
data frame
Basic Rate Interface (BRI) Data Link layer
bridges Data Terminal Equipment (DTE)
broadcast domain distribution layer
buffer encapsulation
Carrier Sense Multiple Access with
Collision Detect (CSMA/CD)
Channel Service Unit/Data Service
Unit (CSU/DSU)
Ethernet
flow control