What is a “switch” in networking?
a) A device that connects multiple devices on a local network
b) A device for connecting to the internet
c) A tool for encrypting data
d) A hardware component for power supply
Answer:
a) A device that connects multiple devices on a local network
Explanation:
A network switch is a device that connects multiple devices, such as computers, printers, and servers, on a local area network (LAN). It allows these devices to communicate with each other by forwarding data packets to the correct destination.
Switches operate at the data link layer (Layer 2) of the OSI model and ensure that data is sent only to the device for which it is intended, reducing unnecessary network traffic. They improve the efficiency of data transmission within the network.
Switches are essential for creating local networks in homes, offices, and data centers, enabling devices to share resources and communicate effectively.