Which statement is true regarding vCenter Server plug-ins?

The statement that some plug-ins require separate installation is accurate because vCenter Server offers a variety of plug-ins that enhance its functionality, but not all of them come pre-installed with the base product. Certain plug-ins, particularly those from third-party vendors or specialized tools that integrate with vCenter Server, must be downloaded and installed separately. This modular approach allows users to customize their vCenter environment based on their specific needs, selecting only the plug-ins that they wish to add functionality for tasks like monitoring, backup, or security.

The presence of additional plug-ins caters to diverse operational requirements and improves the server’s flexibility and extensibility. This separation also helps maintain a lean core product, avoiding unnecessary clutter or resource usage from plug-ins that a user may not need. As a result, users can optimize their installations and ensure that they are only adopting features that pertain to their organization's operations.