Refer to the exhibit. Users at the branch site cannot communicate with HQ. Which action must be taken on SW3 to resolve the issue?

Manually increasing the VTP revision number is not recommended as it can cause incorrect VLAN information to propagate and overwrite valid configurations.

While a VTP domain name mismatch would prevent VTP from working, a password mismatch is a specific and common error when the domain name is otherwise correctly configured but VLANs are not propagating.

VLANs are added to the VTP server; a client switch (or a non-primary server) cannot directly 'add VLANs to the VTP domain' to resolve a communication issue caused by VTP failure.

A VTP password mismatch between SW3 and the rest of the VTP domain would prevent SW3 from receiving and applying VLAN updates, leading to a lack of necessary VLANs for communication. Entering the correct VTP password allows SW3 to synchronize its VLAN database.