1. What is the purpose of using groups?
Use groups to simplify administration by granting rights and assigning permissions once to the group rather than multiple times to each individual member.

2. When should you use security groups rather than distribution groups?
Use security groups to assign permissions. Use distribution groups when the only function of the group is not security related, such as an e-mail distribution list. You cannot use distribution groups to assign permissions.

3. What strategy should you apply when you use domain and local groups?
Place user accounts into global groups, place global groups into domain local groups, and then assign permissions to the domain local group.

4. Why is replication an issue with universal groups?
Universal groups and their members are listed in the global catalog. Therefore, when member-ship of any universal group changes, the changes must be replicated to every global catalog in the forest, unless the forest functional level is set to Windows Server 2003.

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