Networking Devices

A **gateway** is a device used in networks to connect dissimilar LANs or networks that may be using different communication protocols. It can translate between different communication protocols and different topologies. Step 2: Explanation of other options. - **Router**: A router connects networks that use the same protocols but helps route packets between them. - **Bridge**: A bridge connects networks with the same protocol and topology but doesn't convert between different protocols. - **Switch**: A switch operates within the same LAN and doesn't connect dissimilar networks or protocols. Thus, the correct answer is **(3) Gateway**.