Which Layer 1 device takes the data packets from the router, and sends them to all the devices connected on the network?

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Multiple Choice

Which Layer 1 device takes the data packets from the router, and sends them to all the devices connected on the network?

Explanation:
At the physical layer, a device that simply repeats the incoming electrical signal to every port it has will pass data to all devices on the same network segment. A hub does exactly that: when the router sends a frame into the hub, the hub broadcasts it to all connected devices. No addressing is involved, so every device hears the traffic, which is why hubs create a shared collision domain and can lead to collisions in busy networks. A repeater also works at the physical layer but is mainly used to extend signal distance, not to broadcast to all devices on a single LAN in the same way a hub does. A router operates at the network layer and forwards based on IP addresses, not by broadcasting to everyone on the segment. Cat3 is a cable type, not a device. So, the best match is the hub.

At the physical layer, a device that simply repeats the incoming electrical signal to every port it has will pass data to all devices on the same network segment. A hub does exactly that: when the router sends a frame into the hub, the hub broadcasts it to all connected devices. No addressing is involved, so every device hears the traffic, which is why hubs create a shared collision domain and can lead to collisions in busy networks.

A repeater also works at the physical layer but is mainly used to extend signal distance, not to broadcast to all devices on a single LAN in the same way a hub does. A router operates at the network layer and forwards based on IP addresses, not by broadcasting to everyone on the segment. Cat3 is a cable type, not a device.

So, the best match is the hub.

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