Component 03 · L1/L2

Hub vs Switch

Interactive revision playbook. Read one slide at a time, move forward or back for review, and replay the component before continuing.

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01 · Start here

What problem does each device solve?

A hub repeats incoming electrical signals out every other port. A switch receives Ethernet frames, learns source MAC addresses and makes forwarding decisions per destination MAC.

Endpoint
Hub / Switch
Endpoint
Engineer takeaway

Know whether the device is repeating traffic or intelligently forwarding frames.

Learning sequence

Review this playbook as often as needed before moving to the next component.

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