A global policy trace can be invoked from which two sources?

The correct answer highlights that a global policy trace can be invoked from both the Management Console and the Command Line Interface (CLI).

The Management Console provides a graphical interface where administrators can configure and manage the Blue Coat proxy settings. It allows users to easily navigate through various features, making it straightforward to initiate a global policy trace. This method is particularly user-friendly for those who prefer visual representations and simplified navigation when changing settings or troubleshooting issues.

The CLI, on the other hand, offers a text-based method for advanced users who may prefer direct command access for configuration and diagnostics. Using the CLI for tasks like invoking a global policy trace tends to be faster for experienced users and allows for automation of certain tasks through scripting.

In contrast, the other combinations listed in the options involve sources that are not typically used to invoke a global policy trace. For instance, while the logs provide valuable information about the proxy's operations and can be useful for troubleshooting, they are primarily a means of recording information rather than a method to invoke a trace. Similarly, while a web interface might be similar to the Management Console, its present context would not typically encompass the direct invocation of a global policy trace, which is more common in dedicated management environments.