processes of auditing Group policies in your organization

1. What are the processes of auditing Group policies in your organization or organization you know?
2. Assume that you are the Security administrator in your organization. How can you ensure that the security policies are maintained to avoid security Breach?
3. List 3 Auditing tools and explain how it can be used for IT Auditing.

Please, write not more than 2 pages. All papers must conform to APA writing/formatting style.