Question:
How many layers does OSI Reference Model have?
How many layers does OSI Reference Model have?
Show Hint
OSI = 7 layers (Physical → Application).
Updated On: Jul 2, 2026
- 4
- 5
- 6
- 7
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The Correct Option is D
Solution and Explanation
Concept:
OSI model divides communication into layers.
Step 1: List layers
• Physical
• Data Link
• Network
• Transport
• Session
• Presentation
• Application
Step 2: Count layers Total = 7 layers
Step 3: Purpose Each layer has a specific function.
Step 4: Standardization Helps interoperability.
Step 5: Conclusion \[ \boxed{7} \]
Final Answer: \[ \boxed{(D)} \]
Step 1: List layers
• Physical
• Data Link
• Network
• Transport
• Session
• Presentation
• Application
Step 2: Count layers Total = 7 layers
Step 3: Purpose Each layer has a specific function.
Step 4: Standardization Helps interoperability.
Step 5: Conclusion \[ \boxed{7} \]
Final Answer: \[ \boxed{(D)} \]
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