CS Professional · Artificial Intelligence, Data Analytics and Cyber Security - Laws and Practice · Network Basics and Security
Which device operates mainly at the network layer to forward data packets between different networks, such as a company LAN and the internet, using IP addresses?
A router is the device. It works at the network layer and uses IP addresses to forward packets between different networks, such as a LAN and the internet. A hub only broadcasts, a repeater regenerates signals, and a network interface card merely connects one device.
- AHub
- BRepeater
- CRouterCorrect
- DNetwork Interface Card
Explanation
A router uses IP addresses to forward packets between separate networks. A hub simply broadcasts signals to all ports, a repeater regenerates signals, and a NIC is the adapter that connects a device to a network.
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