Câu 15: H12-711-V4-0: HCIA-Security V4.0

Which of the following statements is incorrect about the characteristics of the TCP/IP protocol stack?

1. A. The difference between the TCP/IP model and the OSI reference model is that the TCP/IP model combines the presentation layer and session layer into the application layer.
2. B. When the device encapsulates data, the TCP/IP protocol stack sets a data check mechanism at each layer. — đáp án hiện tại
3. C. When sending data, a device adds a specific protocol header to the data according to the TCP/IP model. This action is called encapsulation.
4. D. When receiving data, the device removes the protocol header according to the TCP/IP model and analyzes the payload information. This action is called decapsulation.