Which network technology can connect multiple IP subnets together?
A) Hub
B) Switch
C) Router
D) Server
E) It would be a lot easier if we could all connect to the same subnet, you know.
The answer: C) Router
Routers can connect multiple IP subnets by connecting networks at the OSI layer 3 Network layer.
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Good practice question but the point is that a subnet is a “logical” grouping based on the IP; in contrast, a hub would be enough to connect physical “sub-groupings”.
A hub cannot connect multiple subnets. For separate IP subnets to communicate with each other, you must have a router.