Learn why Amazon EC2 Dedicated Hosts are essential for using per-socket, per-core, or per-VM software licenses, including Microsoft Windows Server, on AWS. Understand the benefits and licensing flexibility they provide.
When a user wants to bring their own software licenses (BYOL) for Microsoft Windows Server on AWS, such as licenses bound to per-socket, per-core, or per-VM terms, the correct Amazon EC2 instance type required is Dedicated Hosts.
Table of Contents
Question
When a user wants to use their own per-socket, per-core, or per-VM software licenses for a Microsoft Windows Server running on AWS, which Amazon EC2 instance type is required?
A. Spot Instances
B. Dedicated Instances
C. Dedicated Hosts
D. Reserved Instances
Answer
C. Dedicated Hosts
Explanation
Dedicated Hosts are Amazon EC2 instances required when a user wants to use their own per-socket, per-core, or per-VM software licenses for a Microsoft Windows Server running on AWS. They are physical servers dedicated to a single customer and allow customers to use their existing server-bound software licenses.
Why Dedicated Hosts Are Required
Amazon EC2 Dedicated Hosts provide a physical server fully dedicated to a single customer. This setup offers the necessary visibility and control over hardware resources (e.g., sockets and cores) to comply with licensing terms for software like Microsoft Windows Server. Here’s why they are essential:
- Visibility of Physical Resources: Dedicated Hosts expose the number of physical sockets and cores, which is critical for managing licenses tied to these metrics. This level of control is unavailable in shared tenancy or other instance types like Spot or Reserved Instances.
- Compliance with BYOL Licensing Terms: Many software licenses, including those for Microsoft Windows Server and SQL Server, require specific physical server configurations. Dedicated Hosts enable compliance by allowing users to place instances on specific physical servers.
- Cost Efficiency for BYOL: By using Dedicated Hosts, customers can optimize licensing costs by aligning with their existing on-premises agreements. For example, licensing at the physical core level can reduce the number of required licenses compared to virtual CPU-based licensing in shared tenancy environments.
- Flexibility for Non-Software Assurance Licenses: If a license lacks Software Assurance or License Mobility benefits, Dedicated Hosts are often the only viable option for deploying such workloads on AWS.
The correct answer is C. Dedicated Hosts because they provide the required control, visibility, and compliance features necessary for using per-socket, per-core, or per-VM software licenses on AWS. Other instance types do not offer the same level of resource visibility or licensing flexibility needed for such scenarios.
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