What configuration is required for the default VLAN on EX Series switches?

• A. It needs to be defined as a trunk to function.
• B. No explicit configuration is needed if using defaults.
• C. It must be associated with at least one physical interface.
• D. It must always be set to access mode.

Answer: (B)

The default VLAN on EX Series switches is known as VLAN 1, which is automatically created when the switch is powered on. This default configuration is designed to simplify initial setup and operation. Since VLAN 1 is used for management traffic and other default purposes, it does not require any explicit configuration from the user to function correctly. The switch is already preset to recognize and utilize this VLAN as part of its default state.

It is worth noting that while the default VLAN does not require specific user input to operate, network administrators may choose to modify the configuration for security or organizational purposes. However, for the basic functionality of the default VLAN, relying on the preconfigured settings is sufficient. This foundation serves to streamline the deployment of switches within a network environment, allowing for rapid integration without the need for initial complexity.