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Bridge over Divided LANs
Another hardware device that seems
to be going the way of the dodo bird is the bridge. A bridge
knows which PCs live on either side of it. When network traffic (say
email) needs to leave one LAN and head to another, the bridge is the
way it gets there. Otherwise it doesn't send the data, the way a hub
would. Bridges work just like switches, however a switch handles more
ports coming in and out than a bridge, which is why switches are taking
over.
Don’t worry if you don't understand
all this all at once. The topics covered in this chapter extended beyond
the A+ test into the realm of Network+. Of course, there is much more
to networking than what we have discussed. If networking interests you,
it is highly suggested that you pursue Network+ certification after
you complete A+.
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CertiGuide to A+ (Core Hardware) (http://www.CertiGuide.com/aplush/) on CertiGuide.com
Version 1.0 - Version Date: December 6, 2004
Adapted with permission from a work created by Tcat Houser.
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