Critical Thinking 317 Write the information you derived from the previous items

Question

Critical Thinking 317 Write the information you derived from the previous items and be prepared to turn it in to your instructor or discuss it in class. Challenge Lab 7-2: Listing MAC Addresses in Your Network Time Required: 15 minutes Objectives Find MAC addresses for the computers, printers, routers, and other devices on your network Required Tools and Equipment: Net-XX Description: Your boss has asked you to get a list of MAC addresses in your network. He s told you that the addresses of all devices are in the range 192.168.100.1 through 192.168.100.20. (If these addresses aren't the ones you're using, substitute the actual addresses.) Because people are working at their computers, he expects you to accomplish this task without leaving your computer. List the steps you took to get all the MAC addresses. Case Project 7-1 The OSI model is a useful tool in troubleshooting a network because it enables you to isolate a problem to a particular software module or piece of ware. In this project, after reading the description of a problem, identify the OSI model layer or layers that are most likely involved A computer won't connect to the network. After some investigation, you find that the patch cable isn't terminated correctly. . A computer can access resources on the local LAN but not on a differ- ent subnet. You find that the computer's default gateway isn't config ured correctly. You can ping a computer you're trying to transfer files to via FTP, but you can't communicate by using FTP All computers connected to a particular hub have lost network connec- tivity. You determine that the hub is the problem. You receive an encrypted text file, but when you open it, the text is unreadable. You determine that decryption didn't take place as it should have.

Explanation / Answer

1. Layer 1, physical
2. Layer 3, network
3. Layer 7, application
4. Layer 1, physical
5. Layer 6, presentation
6. Layer 2, Datalink
7. Layer 4, transport
8. Layer 5, session
9. Layer 7, application
10. Layer 4, transport

IM A BIT UNSURE ON THE 10TH ONE AND I THINK THE LAYER MIGHT BE 3, APART FROM IT, IM PRETTY SURE ALL OTHERS ARE CORRECT.

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