Explain the differences between a hub, switch, and router.

Interviewers ask about the differences between a hub, switch, and router to assess your technical knowledge and understanding of network infrastructure. They want to evaluate your grasp of how data is managed and routed in a network, which can indicate your competency in handling technical issues and working on relevant projects. This question helps identify whether you possess the foundational knowledge necessary for roles in IT or networking.

Start by clearly defining each device and how they operate within a network. For example, you could say, 'A hub is a basic networking device that connects multiple computers, broadcasting data to all devices on the network. In contrast, a switch connects multiple devices but sends data only to the device that needs it, improving efficiency. A router, on the other hand, connects different networks together, directing data from one network to another and often assigning IP addresses.' This structured approach demonstrates both your knowledge and ability to communicate complex information clearly.