Which tab in J-Web is used to configure interfaces, VLANs, and routing?

The Network tab in J-Web is the correct choice for configuring interfaces, VLANs, and routing. This section is specifically designed to manage and set up the network-related aspects of a Junos device. Users can access various options under the Network tab to create and modify interfaces, manage VLANs for network segmentation, and configure routing protocols and settings to ensure effective data flow across the network.

By focusing on the networking elements, this tab allows network engineers and administrators to streamline the configuration of essential components that facilitate connectivity and communication within the network infrastructure. Each task within this section is critical for maintaining optimal network performance and ensuring that data is routed correctly between devices.