JNCIP-ENT: Juniper Networks Certified Professional – Enterprise Routing (2024) — Question 37

Your EX Series switch has IP telephones and computers connected to a single switch port. You are considering implementing the voice VLAN feature to help with this setup.
In this scenario, which two statements are correct? (Choose two.)

Answer options

• A. The voice VLAN feature must be used with LLDP-MED to associate VLAN ID and 802.1p values with the traffic.
• B. The interfaces must be configured as access ports.
• C. Assigning the incoming voice and data traffic to separate VLANs enables the ability to prioritize the traffic using CoS.
• D. The voice VLAN feature will enable incoming tagged data and voice traffic to be associated with separate VLANs.

Correct answer: B, C

Explanation

Option B is correct because the interfaces need to be configured as access ports to support the voice VLAN feature. Option C is also correct as separating voice and data traffic enhances the ability to prioritize the data using CoS. Options A and D are incorrect because while LLDP-MED can enhance the voice VLAN setup, it is not mandatory, and the voice VLAN feature does not require incoming traffic to be tagged as separate VLANs.