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Answers to Review Questions

1.    B, C. Computers participating in a peer-to-peer network can be either client or server or both. Additionally, the peer-to-peer model has some practical limitations, including the number of computers involved. Answer A is incorrect, because the administration is not centralized. Answer D is incorrect because some peer-to-peer networks do use hubs.

2.    B. The only coax cable designation that should be used with Ethernet is RG-58. Other cable types (like RG-62) won’t meet the specifications for Ethernet.

3.    C, D. Answers C and D are correct, because in a true client/server environment, the server contains all the data and administration information. But it is just a server. It cannot run client applications (like word processing). Answer A is also incorrect, as a true client/server environment can use a hub, but it can also use a bus topology.

4.    C. Ethernet 10Base2 requires coaxial cable, which requires two terminators: one at the beginning of the network segment, and one at the end.

5.    B. The major advantage to mesh networks is their increased reliability. There are multiple redundant connections between all nodes in the network. Answer A is incorrect because the cable costs are much, much more than other networks. Answer C is simply a distracter; mesh is not required by fire codes. Answer D is incorrect, because most token-based networks could not operate in a mesh environment.

6.    B. The only type of network topology that uses terminators is the bus topology.

7.    A. The main advantage of a star topology is the fact that there is a central device (the hub) that controls and manages the physical aspects of the network. It doesn’t use less cable than a physical bus or physical ring. In fact, it uses more. Additionally, if there’s a cable fault, the hub will shut down traffic to that port, thus allowing the network to continue operating.

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