In Citrix Workspace Environment Management (WEM), connectivity settings for Active Directory are configured within the Administration Console. The specific setting for the Active Directory search timeout is located under the Active Directory Objects section, on the Advanced tab. The default value for this timeout is 1000 milliseconds. An administrator would increase this value in environments with complex Active Directory structures or slow domain controllers to prevent search operations from failing prematurely.

B. 1000; Rules: The default value of 1000 ms is correct, but this setting is located on the "Advanced" tab, not the "Rules" tab, which is used for processing WEM rules.

C. 500; Advanced: The "Advanced" tab is the correct location, but the default timeout value is 1000 ms, not 500 ms.

D. 500; Rules: Both the default value and the location are incorrect. The default is 1000 ms, and the setting is on the "Advanced" tab.

1. Citrix Workspace Environment Management Documentation. (2023). Advanced settings. In "Citrix Product Documentation". Retrieved from https://docs.citrix.com/en-us/workspace-environment-management/current-release/user-interface-description/administration/active-directory-objects/advanced-settings.html.

Reference Details: The section titled "Active Directory search time-out" explicitly states, "The time-out value in milliseconds for searching Active Directory. The default value is 1000." This setting is documented as being on the "Advanced" tab of the "Active Directory Objects" pane.