Final answer:
NLUS, an independent plugin, enhances the ability of the Glide Virtual Agent to understand natural languages, although it isn't required for the base functionality of the agent. Therefore, the virtual agent's functionality isn't affected by NLUS.
Step-by-step explanation:
The Glide Virtual Agent plugin and the NLUS are both components of the ServiceNow ecosystem. Activating the Glide Virtual Agent indeed installs the NLUS. However, NLUS, also known as Natural Language Understanding System, is an independent plugin. It is not a mandatory extension for the functioning of the virtual agent. Regardless of the NLUS status, the functionality of the virtual agent isn't influenced. Despite this, NLUS is considered an integral part of the virtual agent plugin as it enhances the ability of the agent to understand and process natural languages more efficiently.
Learn more about Glide Virtual Agent plugin