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1-40
Chapter 1
Planning a Network Topology
6. What components would you have to add to the plan to connect the LANs on
each
of the three floors to a single 1000Base-T Gigabit Ethernet backbone
network?
7. Assuming that all three networks are connected to a single backbone, on
which
network would it make the most sense to connect the server hosting the com-
pany’s customer database? Explain your answer.
a. The first floor network
b. The second floor network
c. The third floor network
d. The backbone network
8. Assuming that all three networks are connected to a single backbone,
which
would be the best network/transport layer protocol to use for the entire
internet-
work? Why are the other available protocols less suitable?
Chapter Summary
■
A network infrastructure is a set of physical and logical components that
provide
connectivity, security, routing, management, access, and other integral
features on
a network.
■
The OSI reference model splits a network’s functionality into seven layers:
appli-
cation, presentation, session, transport, network, data-link, and physical.
■
UTP cables are inexpensive and relatively easy to install, but they are
subject to
electromagnetic interference and can span only limited distances.
■
Fiber-optic cables are more resistant to electromagnetic interference and
attenua-
tion than copper cables, but they are more expensive and difficult to
install and
maintain.
■
Ethernet is the most popular data-link layer protocol on LANs worldwide.
Ethernet
can use many different types of network media and run at several different
speeds.
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