Which network device is used to connect LAN (Local Area Network) together?

The correct answer is Router.

Key Points

• A router is a networking device that forwards data packets between computer networks.
  • Routers perform the traffic directing functions on the Internet. Data sent through the internet, such as a web page or email, is in the form of data packets.
  • A data packet is typically forwarded from one router to another through the networks that constitute the internetwork until it reaches its destination node.
  • A router is connected to two or more data lines from different networks. When a data packet comes in on one of the lines, the router reads the network address information in the packet to determine its ultimate destination.
  • Then, using information in its routing table or routing policy, it directs the packet to the next network on its journey.

Additional Information

• Routers can connect different network architectures, such as Ethernet and Wi-Fi.
• They typically include a built-in firewall to protect against unauthorized access and cyber threats.
• Modern routers often come with additional features like Quality of Service (QoS) settings to prioritize certain types of traffic.
• Some routers also include built-in VPN (Virtual Private Network) capabilities to enhance security and privacy.