Understanding the Purpose and Function of Networking Models

1. A beta version of an application you re testing to send and receive data on your network does not seem to be sending compressed data before sending packets across the network. You re looking at the architecture of the application to see if you can determine where the problem likely originates. Using the OSI model, from where is the problem probably originating?

   1. Transport layer

   2. Application layer

   3. Presentation layer

   4. Physical layer

      C. The Presentation layer in the OSI model is responsible for translating the data into a common format and for data compression to minimize the number of bits that must be transmitted, therefore Answer C is correct. If the data segments are too large, it is likely that there is a problem with the data compression at the Presentation layer.

      x Answer A is incorrect, because the Transport layer is responsible for transporting the data from one node to another. It manages end-to-end flow control and error detection and recovery. This layer would not be involved if data segments were too large. Answer B is incorrect, because the Application layer is where the user connects with the communication process such as file or e-mail transfers. This layer is not responsible for the size of the data segment. Answer D is incorrect, because the Physical layer is responsible for taking...