Q
A router operates at which layer of the OSI model?
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A
Network layer (Layer 3)
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B
Transport layer (Layer 4)
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C
Data link layer (Layer 2)
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D
Physical layer (Layer 1)
Correct Answer:
A. Network layer (Layer 3)
Explanation:
Router = Layer 3 (IP routing); switch = Layer 2 (MAC); hub = Layer 1.