Identify the osi model layer

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Reference no: EM131513876

Question: 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 hardware. 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 different subnet. You find that the computer's default gateway isn't configured 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 connectivity. 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.

• You check some statistics generated by a network-monitoring program and discover that an abnormally high number of CRC errors were detected.

• One of your servers has been exhibiting sluggish network performance. You use a network-monitoring program to try to evaluate the problem. You find considerable TCP retries occurring because the server is being overwhelmed by data, and packets are being discarded.

• A user is trying to connect to another computer, but the logon attempt is continually rejected.

• You try to access a Linux server to share files by using NFS. You can communicate with the server, but the shared files don't appear to be available.

• You inspect a computer that isn't able to communicate with other computers. You find that IPv6 instead of IPv4 is installed on that computer.

Reference no: EM131513876

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