Paper, Order, or Assignment Requirements

Answer the questions asked in a paragraph and in the drawing questions please use VISIO

 

Case Project 9-1

 

You have been hired to consult with a local architecture firm and suggest improvements to update its LAN. The firm’s staff of 35 full-time and 8 part-time employees hasn’t had time to pay attention to the network, which was set up many years ago by another consultant. Currently, the LAN consists of 30 desktop PCs, 8 laptops, and some peripherals, such as printers. Employees use their laptops at home as well as at the firm, so they have been configured for use with broadband Internet connections. At the firm, a router connects the LAN to a local ISP through a T1 link. Connected to the router are five switches positioned at different locations around the building. Each network client connects to its nearest switch. Every client is assigned a static IP address based on the group of addresses the firm leases from its ISP. Not surprisingly, staff have reported frustrations with maintaining this setup and worry about whether it will allow them to increase the size of their network. What steps do you take to simplify the firm’s client IP assignment process? What measures will help conserve IP addresses as the firm grows? Draw a simple network diagram that includes the firm’s LAN clients, its existing connection to the Internet, and all necessary connectivity hardware to implement your suggestions.

Case Project 9-2

 

Now that you have satisfactorily implemented IP addressing changes on the

 

architecture firm’s network, the director asks you to help choose new mail

 

server and client software that will be used by all employees. Because some of

 

the firm’s employees travel frequently, the mail system must allow them to

 

keep messages on the mail server indefinitely. What protocols would your

 

recommended mail system support or require? On the network diagram you

 

drew in Case Project 9-1, add a mail server at the location you think best.

 

On this mail server, what ports must be available to clients in order for them

 

to pick up their mail, given the protocol (or protocols) used by the mail

 

system? (If you have forgotten significant port assignments, you can find them in Table 4-6.)

 

Case Project 9-3

 

Months later, the architecture firm’s director calls you to help troubleshoot a network problem. Their network is experiencing such heavy traffic that performance across the LAN is suffering. They suspect that one device is issuing a barrage of requests, perhaps due to a software application malfunctioning, a security breach, or a virus. However, they are unable to identify the problem node. Using your knowledge of TCP/IP utilities, what command(s) would you use t identify the troublesome computer’s IP address and host name? What single command would give you the most information about

where traffic is slowing?

 

Case Project 8-2

 

You have persuaded XelPharm’s CIO that wireless networking would benefit many of the company’s employees. However, he requests that you plan the network carefully and begin with a pilot network before migrating hundreds of clients to use wireless technology. You decide to begin with a pilot network in the distribution facility. The distribution facility is 200 feet long by 120 feet wide. It houses 45 employees during each shift, all on the same floor. What is your first step in planning the pilot network? As part of your later planning, draw the network, including the quantity and optimal placement of access points. What pitfalls, some unique to this environment, are you careful to avoid? What wireless standard do you recommend and why?