Which Cisco solution can be used to convert a Nexus switch into a matrix switch?

The correct choice highlighting the conversion of a Nexus switch into a matrix switch is NDB (Nexus Data Broker). NDB is designed to enhance network visibility and traffic management by aggregating, filtering, and distributing data packets to various monitoring tools. This functionality allows administrators to effectively manage traffic and ensure that monitoring tools receive the necessary data without congestion or redundancy.

The other solutions listed have different purposes. LMS (LAN Management Solution) primarily focuses on network management and monitoring, helping in configuration management and troubleshooting rather than transforming switch capabilities. PRIME (Cisco Prime Infrastructure) is mainly geared towards lifecycle management and provides tools for managing both wired and wireless networks. VTS (Virtual Traffic Switch) operates with different functionalities, often related to traffic management and optimization, but is not specifically intended for transforming Nexus switches into matrix switches.

Thus, NDB stands out as the appropriate choice for achieving the functionality of a matrix switch in Nexus networks.