What action is required to enable audit settings for logons in the WorkstationGPO?

To enable audit settings for logons in the Workstation Group Policy Object (GPO), it is necessary to select "Audit logon events." This action instructs the system to actively monitor and log any logon attempts, both successful and unsuccessful, which is crucial for security and compliance purposes. By selecting this setting, you ensure that events related to logon activity are recorded in the security logs, enabling administrators to review access events and detect any unauthorized attempts or unusual behavior.

Setting the audit policy to "Not Defined" would leave the audit settings unchanged, meaning that either the default settings would be applied or logging would be ineffective according to the current policy configuration. Disabling "Audit logon events" would prevent any logon activities from being recorded, eliminating essential tracking of user access and compromising security oversight. Defining a custom log is not directly relevant to the standard GPO configurations for auditing logons, as it would involve creating a custom solution rather than utilizing built-in settings. Therefore, selecting "Audit logon events" is the appropriate action to ensure logon activities are effectively monitored and recorded.