Practice Quiz

CompTIA Security+ Exam Prep

Category - Communication

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A protocol at each layer has specific responsibilities and functions that it must perform. What layer does not include an application, but rather, the protocols that support applications?
  1. Presentation Layer
  2. Application Layer
  3. Transport Layer
  4. Network Layer
Explanation
Answer: B - The application layer does not include an application, but rather, the protocols that support applications. This layer works closest to the user and provides file transmissions. When an application needs to send data over the network, it passes instructions and the data to the protocols that support it at the application layer. This layer processes and properly formats the data and passes the same down to the next layer within the OSI model.
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