Information Technology Reference
In-Depth Information
b.
Could a bridge use a storeandforward approach to com
munications between segments?
In each case, explain your answer.
5.
The discussion of wireless communications identified seven
complications that wireless technology had to address beyond
the general approach used for the Ethernet. Discuss how each
of these complications is addressed by the details of the wire
less standards.
6.
In Figure 8.8, the bridge connects two small segments, and it
might be reasonable for the bridge to keep record that com
puters A through H are on the left and computers I through P
are on the right. In another context, however, computers A
through H might be on one side with the entire Internet on
the right. Explain how a bridge could record only the identi
ties of computers A through H on one side and still perform
its function.
7.
Standards and technologies for wireless communication are de
signed to support effective communication between access
points and mobile stations over a range of electrical conditions.
a.
Suppose wireless computers were not allowed to be mobile;
that is, they used radio technology for communication, but
they were not allowed to move from one place to another.
Which, if any, elements of wireless communication might
be simplified?
b.
Could any elements of wireless communication be simpli
fied if wireless computers were not allowed to access the
World Wide Web or other hardwired network?
In each case, briefly justify your answer.
