Implementing Cisco IP Switched Networks (CCNP SWITCH, legacy) — Question 54

A network engineer wants to ensure Layer 2 isolation of customer traffic using a private VLAN. Which configuration must be made before the private VLAN is configured?

Answer options

• A. Disable VTP and manually assign VLANs.
• B. Ensure all switches are configured as VTP server mode.
• C. Configure VTP Transparent Mode.
• D. Enable VTP version 3.

Correct answer: C

Explanation

To configure private VLANs, the VTP must be in Transparent Mode because this mode allows for local VLAN configurations without propagating them to other switches. Disabling VTP and manually assigning VLANs is unnecessary for private VLANs, while VTP server mode and version 3 do not provide the required isolation functionalities.