Your customer has five office locations. Each office location has 20 VLANs configured, one for each department. Your engineering team has recently secured a government contract with strict regulations which require that engineers be placed into separate workgroups. These workgroups cannot communicate with each other. Without changing the primary VLAN assignments, which JUNOS feature meets this requirement with minimal configuration?
Create a series of firewall filters to block users in each workgroup.
Configure a Private VLAN and assign each workgroup a secondary VLAN.
Configure Virtual Private LAN Service to isolate broadcast domain.
Turn off the default BUM (Broadcast, unknown, multicast) flooding mode.