HOTSPOT
Your network contains an Active Directory domain named adatum.com. All domain controllers run Windows
Server 2012. All client computers run Windows 7. The computer accounts for all of the client computersare
located in an organizational unit (OU) named
OU1.
An administrator links a Group Policy object (GPO) to OU1. The GPO contains several Application control
policies.
You discover that the Application control policies are not enforced on the client computers.
You need to modify the GPO to ensure that the Application control policies are enforced on the client
computers.
What should you configure in the GPO?
To answer, select the appropriate service in the answer area.
Answer: 
Explanation:
Application Identity
“The Application Identity service determines and verifies the identity of an application. Stopping this service will prevent AppLocker policies from being enforced.”
https://technet.microsoft.com/en-us/library/ee791779(v=ws.10).aspx