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Module 3: Network Layer & Routing

20212m

Which device uses logical addressing system?

(i) Hub
(ii) Switch
(iii) Bridge
(iv) Router

Worked SolutionAI Assisted

Answer: (iv) Router

Why: A router works at the network layer and forwards packets using logical (IP) addresses, which are hierarchical and routable across networks. A hub is a Layer-1 repeater that simply broadcasts signals and performs no addressing, while a switch and a bridge are Layer-2 devices that forward frames using physical (MAC) addresses — so none of them uses logical addressing.

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