JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2023) — Question 47

You are a service provider and have multiple customers in a building.
You are installing a new switch that can host all of your customers. However, you would like to ensure that one customer cannot see or broadcast to another customer.
You would also like to have them use a common gateway IP address from the building. What should be used to provide this access?

Answer options

• A. VLAN
• B. private VLAN
• C. filter-based VLAN
• D. Layer 2 tunneling

Correct answer: B

Explanation

A private VLAN (PVLAN) is the correct solution because it allows multiple customers to share the same VLAN while isolating them from each other, preventing communication and visibility. Regular VLANs would not provide the necessary isolation, while filter-based VLANs and Layer 2 tunneling do not specifically address the requirement of customer separation within the same network segment.