Difficulty: Hard

Average Score: 40%

What characterizes a star network topology?

Rationale

All devices being connected to a single central device.

In a star network topology, all devices are individually connected to a central hub or switch, which facilitates communication among them. This structure allows for easy management and troubleshooting, as any device failure does not affect the entire network's functionality.

A (Every device being connected to exactly two other devices) YOUR ANSWER

This description aligns with a linear bus or ring topology rather than a star topology. In a star network, devices are not limited to connections with only two other devices; instead, they connect to a central hub, allowing for more complex inter-device communication.

B (Devices being connected to a common communication line) YOUR ANSWER

This characteristic is typical of a bus topology, where all devices share a single communication line. In a star topology, each device has its own dedicated connection to the central hub, which is distinctly different from sharing a common line.

C (Every device being connected to every other device) YOUR ANSWER

This defines a fully meshed topology, where each device has a direct link to all other devices. In contrast, a star topology relies on a central device for communication, rather than requiring direct connections between all devices.

D (All devices being connected to a single central device) CORRECT

This is the defining feature of a star topology, where a central hub or switch serves as the main point of communication. Each device connects to this central point, facilitating efficient data management and reducing the risk of total network failure if one device goes offline.

Conclusion

A star network topology is characterized by all devices connecting to a single central device, which manages data traffic and communication between devices. This structure enhances reliability and simplifies network management, distinguishing it from other topologies like bus or mesh networks. Understanding these differences is crucial for effective network design and implementation.

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