Network Hardware and Infrastructure
Hardware that runs networks
Infrastructure devices
Real networks rely on hardware such as routers, switches, access points, modems, and firewalls. These devices work together to move traffic and help protect the network.
Common devices
Access point vs Router
Access Point
- Broadcasts wireless network access
- Connects wireless devices to the local network
Router
- Directs traffic between networks
- Often provides basic network services
Important
Not every device labeled “Wi-Fi” is the same. Some devices combine several functions, such as routing, switching, and wireless access.
Which device often provides Wi-Fi to devices?
An access point provides wireless network access.
Correct answer: Access point
Which device helps filter traffic using rules?
A firewall is used to help filter and control network traffic.
Correct answer: Firewall
What device connects a local network to an internet service provider?
A modem connects the local network to the ISP's service.
Correct answer: modem
What device connects devices within a local network?
A switch connects devices within a LAN.
Correct answer: switch