Which command would you utilize to set up a new VLAN?

To set up a new VLAN in a Juniper device, using the command to set the VLAN ID and name is essential for proper VLAN configuration. This command format includes specifying the VLAN name and its corresponding VLAN ID, which are critical parameters for identifying and managing the VLAN within the network.

The syntax of the command allows for precise identification of the VLAN, making it easy to configure additional properties or to reference the VLAN later. The inclusion of both the name and the VLAN ID ensures clarity and avoids any potential misconfiguration that could arise from incomplete information.

Setting up a VLAN involves defining its unique identifier, which is why specifying the vlan-id is a requirement in this context. Additionally, the structured approach of this command aligns with Juniper's hierarchical configuration model, allowing for easier management and modification of settings in the future.

In contrast, other options lack the necessary components for proper VLAN creation or do not follow the correct syntax prescribed by Junos OS. Hence, using the correct command syntax for VLAN setup is crucial for successful network configuration.