How many domains can you run on an instance of Windows server?

How many domains can you run on an instance of Windows server?

• 1
• 25
• 4
• 16 

EXPLANATION

 Every forest starts with a single domain. The maximum number of users that a single domain forest can contain is based on the slowest link that must accommodate replication between domain controllers and the available bandwidth that you want to allocate to Active Directory Domain Services (AD DS).