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Question
Your company has a primary datacenter in New York City and three regional datacenters in Chicago, San Francisco, and Atlanta. Each datacenter hosts two servers that run Windows Server and are configured as Active Directory Domain Services (AD DS) domain controllers.
You need to recommend a solution that meets the following requirements:
- Optimizes the replication of AD DS data between the domain controllers in each datacenter
- Minimizes authentication traffic between datacenters
Which two actions should you include in the recommendation? Each correct answer presents part of the solution.
Proposed answer
- Configure DNS server forwarding to forward queries between datacenters.
- Modifying the operations master roles
- Create a site for each datacenter.
- Create subnet objects for each datacenter.
Correct answer
- Create a site for each datacenter.
- Create subnet objects for each datacenter.
- Incorrect - Configure DNS server forwarding to forward queries between datacenters. DNS server forwarding is unrelated to AD DS replication and failover functionality and is not a recommended solution for optimizing AD DS performance.
- Incorrect - Modifying the operations master roles will not optimize the replication or authentication traffic.
- Correct - Sites are used to group domain controllers located in different physical locations and help control how replication occurs between domain controllers. As a result, administrators can optimize replication performance by creating sites for each datacenter and ensuring that changes are propagated quickly and efficiently.
- Correct. Subnets are used to associate IP addresses with physical locations, and they help domain controllers identify which site the domain controller belongs to. By creating subnet objects for each datacenter, administrators can ensure that domain controllers are assigned to the correct site and that replication occurs only between domain controllers in the same site.