Why we use vlan for different department?

Question

Accepted Answer

VLANs are used to logically separate network traffic and improve network performance and security.

VLANs allow for better network management and organization by grouping devices based on their function or location.
They also reduce network congestion by limiting broadcast traffic to devices within the same VLAN.
VLANs can improve network security by isolating sensitive data or devices from the rest of the network.
For example, a finance department may have their own VLAN to keep their financial data separate from other departments.
VLANs can also be used to prioritize network traffic for certain applications or devices.
For instance, a VoIP phone system may be given its own VLAN to ensure high-quality voice calls.

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