Which network topology connects all devices to a central hub?

• A. Star topology
• B. Bus topology
• C. Ring topology
• D. Mesh topology

Answer: (A)

The network topology that connects all devices to a central hub is known as star topology. In this layout, each device on the network is individually connected to a central point, typically a switch or hub. This central hub acts as the main conduit for data transmission, allowing devices to communicate with each other through the hub.

One of the main advantages of star topology is that if one connection or device fails, it does not affect the rest of the network; other devices can continue to function normally. This design also simplifies the process of adding or removing devices, as each connection is independent of the others.

This contrasts with other topologies, such as bus, ring, or mesh. In bus topology, all devices share a single communication line, which can lead to data collisions and network failure if there is a break in the line. Ring topology connects devices in a circular format, where each device is connected to two other devices, and data travels in one direction, making it more vulnerable if one connection fails. Mesh topology involves multiple interconnections between devices, which can provide redundancy but is more complex and costly to implement.

Thus, the defining characteristic of the star topology is its reliance on a central hub that manages connections, making it a popular choice