Question 35

A router connects to a local area network and serves as a gateway to the internet.

Routers are essential devices in networking that connect local area networks (LANs) to the internet, facilitating communication between various devices and the wider web.

A) Monitors traffic on the network and blocks it if it triggers safety rules

This option describes the function of a firewall rather than a router. While routers can include some security features, their primary role is to route data between networks rather than monitor and block traffic based on safety rules.

B) Connects to a local area network and serves as a gateway to the internet

This choice accurately defines the primary function of a router. It connects devices within a local area network to the internet, allowing for data exchange and communication with external networks, making it the correct answer.

C) Extends the cable range and allows connections to be made by increasing the signal strength

This option describes the function of a network extender or repeater, not a router. A router does not primarily extend cable range; instead, it directs data traffic between networks.

D) Provides services, such as website hosting and routing, for various devices

While routers do route data, they are not typically responsible for website hosting, which is a function of a web server. This option misrepresents the primary role of a router.

Conclusion

The correct answer, option B, accurately describes a router's fundamental role as a gateway connecting local area networks to the internet. All other options either misattribute functions to the router or describe roles of different network devices, underscoring the specific purpose of routers in network architecture.