Free Network basics lessonsNetwork basics · Stage 1 · Layers and devices · Step 3
Hubs, switches and routers
See what each device does with an arriving frame, and which layer it works at. About 12 minutes.
A switch receives a frame whose destination MAC address isn't in its table. What does it do?
- ASends it out of every port except the one it arrived on
- BDrops it
- CSends it to the router for a lookup
Show the answer
Sends it out of every port except the one it arrived on. With no entry it can't know which port leads there, so it floods.
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