chapter 2 Case project

1. Henderson and Associates, a mid-sized engineering firm, hired you as a consultant to design their network. The company occupies three floors in a building downtown with PCs on all 40 desks and three servers. The company management also wants to keep costs down but needs a reliable network. Select a topology or combination of topologies, to service this company. Draw a map of this network.

2. The database manager for your company wants to implement a “server Farm” for the database servers. These servers will be replicated; the network must operate reliably and quickly yet still be able to connect to other devices. Develop two plans, with different topologies. For implementing this server farm; discuss the advantages and disadvantages of each concept.

3. Design networks for two classroom environments – a permanent facility and a travelling classroom. They must have connectivity for 20 PCs and a server, and be inexpensive and easy to set up. Present both versions of this design to the class, and discuss the benefits of each.4. Design a network for a 3-D imaging firm. It must have connectivity for 40 high speed imaging workstations and two servers. This network must support high performance and easy reconfiguration into as many as eight workgroups, any of which may have as many as a dozen members. Explain the kind of networking device required to create such an environment and why it’s the only choice for this particular kind of networking implementation.

Chapter 3 Case Project

1. Answer.

In the case of XYZ Corp’s, Nashua, NH, facilities are two office buildings located 400 ft apart, each with it’s own LAN. To connect the two networks, I plan to dig a trench and lay cable in conduit between the two buildings. So, I would choose to use fiber – optic cable than what the manager wants, which is to use thinwire Ethernet. The best reason I can use to justify the use of fiber – optic cable in this case is that it leaves more room for growth and for future needs for increased bandwidth, than thinnet does.

2. Answer. B

Since, TVBCA is moving to new facilities. Its new campus includes 3 buildings with no more than 100 meters apart from each other. The network is to link the 3 buildings. The proposed solution is to use a fiber – optic cable to network the 3 buildings. The possible result does this solution delivers are the required result and only one of the two desired result because, a fiber – optic can support speeds of up to 100 mbps and secure as possible from electronic eavesdropping, and since this type of cable cost is expensive, TVBCA must have sufficient cost of the network.

3. Answer. A

In this case, the proposed solution of using category 5 UTP and hubs to connect all workstations, therefore is the common in most office building and other work environments, the same with the advertising firm. Since, the company plans to introduce video teleconferencing and e – mail capable and database application, the advertising firm must operate the network at speeds up to 100 mbps and since UTP helps to ensure consistent performance that adhere to its requirements. The proposed solution delivers the required results and both of the optional desired result because it needs to have a speed of 100 mbps to support the bandwidth of the network to have a fast access as possible and its easy to install wit high interference and it cost inexpensive.

4. Answer. B

In the case of XYZ Corp. that decides to bring mobile computing to their field engineers. And each field engineers is to be supplied with a laptop, a portable fax or printer and some kind of wireless devices. Since laptops and other handheld computers are now affordable and they want to have it from GTE Corporation, they can apply mobile computing which is capable of using broadcast and communication carries to send and receive signals using portable devices, and the standards start to come online which enable the field engineers to send e – mail and receive it from their employees and headquarters, So, the proposed solution delivers the required result and only one of the two desired results because it doesn’t emit no external signals that might be detected by any broadcast medium does.

5. Answer. C

In this case, wireless options do look very attractive in TVBCA who operates two building on other side of the river that crosses nearby, is a local cable company that acquire the right – of – way and to install a line between them. If we are going to install a set of 10 mbps point – to – point infrared laser wireless bridges for communication between the two buildings, therefore the proposed solution delivers the required result and both of the optional desired results because both buildings must have communication with 10 mbps point – to – point infrared laser wireless bridge enables to connect network up to 3 miles apart and the wireless connection must be secure from electronic eavesdropping, because a local cable company is next door to the 15 – story building, it must be resistant to electromagnetic interference caused by emissions from external devices such as transformers or electrical motors that can disrupt the network transmission over an infrared .

Chapter1 Case Project

1. It must be a server-based network because it provide centralized control over network resources, primarily by instituting network security and control through the servers own configuration and setup. It manufactured to handle multiple request for shared resuorces expeditiously.

2. It must be a peer-to-peer network because each individuals user control access to the resources taht reside on his or her machine.Users may give everyone else unlimited access to thier resources, or they may grant restricted access to other users on the network. Also they can decide whether the supply a password or not.

3. It must use a server-based network because can handle anywhere from a handful to thousands of users, as such network to serve entire organizations or to keep pace with an organizations growth and expansion.

4.The find of specialized server need to install at American Toll and Die is the Fax Server bacause it manage fax traffic for a network, receiving incoming faxes via telephone distributing them to their receipients over the network and collecting outgoing faxes across beforesending them via telephone.