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The OSI model has _______ layers.
  • a)
    4
  • b)
    5
  • c)
    6
  • d)
    7
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The OSI model has _______ layers.a)4b)5c)6d)7Correct answer is option ...
The OSI model as you correctly mentioned, does have 7 layers and the reason is simple… The ISO decided that 7 layers was adequate to create the reference model they wanted! If the OSI model had more or less layers, it wouldn't mean that the protocols or software created would have extra or less functionality of what they have today, because as we already said, this is a reference model.
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Most Upvoted Answer
The OSI model has _______ layers.a)4b)5c)6d)7Correct answer is option ...
Physical,data link,network,transport,session,presentation and application layer
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The OSI model has _______ layers.a)4b)5c)6d)7Correct answer is option ...
Understanding the OSI Model
The OSI (Open Systems Interconnection) model is a conceptual framework used to understand and implement networking protocols in seven distinct layers. Each layer serves a specific function in the process of data communication.
Seven Layers of the OSI Model
The OSI model consists of the following seven layers:
  • Layer 1: Physical Layer - Deals with the physical connection between devices, including cables, switches, and other hardware.
  • Layer 2: Data Link Layer - Responsible for node-to-node data transfer and error detection/correction in frames.
  • Layer 3: Network Layer - Handles routing and forwarding of data packets across the network.
  • Layer 4: Transport Layer - Ensures reliable data transfer with error recovery and flow control through segments.
  • Layer 5: Session Layer - Manages sessions between applications, providing control over the dialogues.
  • Layer 6: Presentation Layer - Translates data formats, handles encryption, and ensures that data is in a readable format.
  • Layer 7: Application Layer - Interfaces directly with end-user applications, facilitating communication between software and the network.

Importance of the OSI Model
Understanding the OSI model is crucial for several reasons:
  • It standardizes networking protocols to ensure interoperability.
  • It helps in troubleshooting network issues by isolating problems to specific layers.
  • It provides a framework for developing and understanding new networking technologies.

In conclusion, the OSI model comprises seven layers, each serving a vital role in the communication process, making it a fundamental concept in computer networking.
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