TCP/IP model does not have ______ layer but OSI model have this layer....
Understanding the TCP/IP and OSI Models
The TCP/IP and OSI models are foundational frameworks in computer networking, each serving distinct purposes in understanding how data communication occurs.
Key Differences Between TCP/IP and OSI Models
- Layer Structure:
- The TCP/IP model consists of four layers: Application, Transport, Internet, and Network Interface.
- The OSI model consists of seven layers: Application, Presentation, Session, Transport, Network, Data Link, and Physical.
Absence of Session and Presentation Layers in TCP/IP
- Session Layer:
- Responsible for establishing, managing, and terminating sessions between applications.
- In TCP/IP, this functionality is typically handled by the Application layer without a distinct Session layer.
- Presentation Layer:
- Responsible for data translation, encryption, and compression.
- Similar to the Session layer, the TCP/IP model does not provide a separate Presentation layer, as these functions are generally incorporated in the Application layer.
Conclusion
The correct answer to the question is option 'D', as the TCP/IP model lacks both the Session and Presentation layers found in the OSI model. Understanding these differences is crucial for professionals in the field of Computer Science Engineering, as it influences how network protocols are designed and implemented.
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