Network+

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Be able to explain the basic purpose and function of many different network devices. You should understand how each network device (including hubs, switches, routers, bridges, and wireless access points) functions.


Be able to define the characteristics of network attached storage.


Essentially, network attached storage is a traditional server shrunk down into a “black box.” It is usually administered with a web browser and it’s not upgradeable, but it is much cheaper than a traditional server.


Describe the characteristics of wireless networks and how they differ from traditional wired networks. Wireless networks based on the IEEE 802.11 standard typically use radio frequency (RF) transmission methods and transmit through the air instead of through a wire or cable. In addition, they use special NICs and wireless access points to facilitate communication.

Key Terms


^^efore you take the exam, be certain that you are familiar with the following terms:


ad hoc RF network


gateway


backbone


ground loop


BNC


host


bridge


hub


bus topology


internetwork


cable tester


ISDN Terminal Adapter


Channel Service Unit (CSU)


logical topologies


client


mesh topology


client/server network


modem


coaxial cable (coax)


multiplexing


crosstalk


multipoint RF network


Data Service Unit (DSU)


network


DIX


network attached storage


electromagnetic interference (EMI)


network interface card (NIC)


expansion slots


network operating system


Fast Ethernet


N-series connector

peer-to-peer networks


physical media


physical topology

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