What physical network topology consists of all connected devices connecting to one central device, such as a switch?

The answer is Star Topology

Explanation:

Star Topology is a physical network topology where all host is connected to a central device which could be a hub or a switch. In this topology, all messages sent among hosts must pass through the central device.

The star topology has one major advantage, in cases of system failure by any host within the network, the network is not affected.

However, in a case where the server is down the whole network will be down as well. This is a grave disadvantage.

your answer is confidentiality

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