1. Your company's CEO has decided to upgrade the outdated 10-mbps network cabling infrastructure. He has received several proposals in which Cat 5e, Cat 6 and Cat 6a are to be implemented. Write a memo to the CEO explaining the issue of future-proofing your network and why is not advisable to spend less money on Cat 5e now, but rather to go right to Cat 6/6A for all new installations?

2. A friend has asked you to analyze his business network and offer advice. You discover his network utilizes Ethernet hubs. Write him a note to describe why switches have replaced hubs as the central device that all nodes connect to and why it is in his company's best interest to change out all the hubs in favor of switches.

3. Ethernet uses a protocolCSMA/CD. Detail what CSMA/CD is and how it works. Your explanation must include a description of the three parts: CS, MA, and CD.

4. A junior tech has been assigned to you and he asks you to help him understand what MMF and SMF are and what is the difference between them. How do you answer him in a way that aids in learning and understanding? You may use the video tutorial links below to help you develop your answer.

5. Tyler complains that he cannot get on the corporate network that operates at 1000BaseT. You discover that he moved his desk and PC to another part of his office, and an I.T. intern gave him a longer Cat5 patch cable from the storage room to account for the new position of his desk in the office.

Answer the following questions:

1. What do you suspect is the reason he cannot access the network?
2. How do you explain the problem and solution to the intern

6. Use the Internet to research the cost of a network drop in your area. Your answer should include the cost and the source (or web address) from which you obtained the information. If necessary, call them and ask for this information, indicating that this research for an academic project.

1) UTP drop company web address and drop cost.

2) Fiber drop company web address and drop cost.

7. A former colleague, Liam, asks for your advice. His network has a fully functional central switch, yet half of his horizontal runs are certifying correctly for speed and attenuation while the others are not. This is information about his structured cabling:

Office	Horizontal Run Distance	Certifies (Y/N)
Bob	300 ft	Y
Susan	75 ft	Y
Joseph	153 ft	Y
Veronica	299 ft	Y
Sarah	375 ft	N
Will	389 ft	N
Lilian	410 ft	N

What do you think the problem is and what is your suggestion to Liam?